Sandhi (संधी)

Sandhi (संधी) is the phonological process by which two words or morphemes, when placed adjacent to each other, fuse at their boundary to produce a new combined sound or form. The word संधी itself means "junction" or "meeting point," and that is exactly what sandhi describes — the meeting of sounds at the boundary between two adjacent words or word-parts. Sandhi is one of the hallmarks of classical Indic linguistics and is central to understanding both Marathi grammar and the Sanskrit-derived vocabulary that constitutes a large portion of formal and literary Marathi.

In everyday Marathi speech, sandhi operates naturally and often unconsciously. When you say सूर्योदय instead of सूर्य उदय, or महात्मा instead of महा आत्मा, or नमस्ते instead of नमः ते, you are applying sandhi rules automatically. Mastering these rules helps you understand compound words, improve spelling accuracy, read Sanskrit-derived texts, and perform better in competitive exams where sandhi विग्रह (splitting the sandhi back into its components) is a standard question type. Sandhi is closely related to samas (compound word formation) and to the individual vowel sounds studied in the swar lesson and consonant patterns in the vyanjan lesson.

This lesson covers the three main categories of sandhi in Marathi — स्वरसंधी (vowel sandhi), व्यंजनसंधी (consonant sandhi), and विसर्गसंधी (visarga sandhi) — with definitions, all major sub-rules, extensive worked examples, the vigrah method, practice questions, and common mistakes. Use the grammar quiz generator for timed sandhi drills, and the sentence checker to verify your sandhi in written sentences.

संधी म्हणजे काय? — Definition and Importance

The word संधी comes from Sanskrit sam + dhi, meaning a junction or coalition. In grammar, sandhi is defined as the phonological change that occurs at the boundary between two adjacent words when they are pronounced together in connected speech or written as a single compound. The change may involve the merging of two sounds into one, the modification of one sound under the influence of its neighbour, or the deletion of a sound.

Sandhi is primarily relevant to tatsama words — vocabulary borrowed directly from Sanskrit without phonological adaptation. Most native Dravidian-influenced Marathi words do not undergo classical sandhi, but an educated Marathi writer must recognise and apply sandhi rules when working with formal vocabulary, Sanskrit-Marathi compound words, and literary texts. The ability to perform विग्रह (splitting a sandhi form) is tested in Class 5 through Class 12 Marathi examinations and in all major competitive examinations in Maharashtra.

संधीचे प्रकार — Types of Sandhi

Marathi grammar, following the Sanskrit grammatical tradition of Panini, divides sandhi into three broad categories based on the nature of the sounds at the junction point. The table below provides a quick overview of all three before each is studied in detail.

१. स्वरसंधी — Vowel Sandhi

Vowel sandhi (स्वरसंधी) occurs when the final sound of the first word is a vowel and the initial sound of the second word is also a vowel. The two vowels merge or transform according to predictable phonological patterns. Understanding the vowel system is the prerequisite — study it carefully in the swar lesson. Vowel sandhi has four major sub-types in classical Marathi grammar.

Sub-type 1: Dirgha Sandhi (दीर्घसंधी) — Same Vowels Merge

When the same vowel (short or long) meets itself, the two merge into the corresponding long vowel. The rule is: अ/आ + अ/आ = आ; इ/ई + इ/ई = ई; उ/ऊ + उ/ऊ = ऊ. This is the simplest sandhi and the most common in everyday tatsama vocabulary.

Sub-type 2: Guna Sandhi (गुणसंधी)

When अ/आ is followed by इ/ई, the result is ए. When अ/आ is followed by उ/ऊ, the result is ओ. When अ/आ is followed by the vowel ऋ, the result is अर्. These are called guna substitutions because they replace the simple vowels with their "guna" (strengthened) equivalents.

Sub-type 3: Vriddhi Sandhi (वृद्धिसंधी)

When अ/आ precedes ए/ऐ, the result is ऐ (vriddhi of ए). When अ/आ precedes ओ/औ, the result is औ (vriddhi of ओ). These are the "strengthened" or "lengthened" versions of the guna vowels.

Sub-type 4: Yan Sandhi (यणसंधी)

When इ/ई is followed by a dissimilar vowel, इ/ई changes to the semivowel य्. When उ/ऊ is followed by a dissimilar vowel, it changes to व्. When ऋ is followed by a dissimilar vowel, it changes to र्. This converts the vowel at the end of the first word into a consonant (semivowel), enabling smooth connection.

Comprehensive Vowel Sandhi Table

२. व्यंजनसंधी — Consonant Sandhi

Consonant sandhi (व्यंजनसंधी) occurs when a consonant at the end of one morpheme meets a consonant or vowel at the start of the next. The rules relate to voicing (voiced vs. unvoiced), nasalisation, and articulatory position. The vyanjan lesson provides the full consonant chart needed to apply these rules.

Voicing Assimilation (घोषत्व संधी)

When an unvoiced consonant at the end of the first morpheme is followed by a voiced consonant or a vowel at the start of the next morpheme, the unvoiced consonant becomes its voiced equivalent. For example: क् → ग्, च् → ज्, त् → द्, प् → ब्.

Nasal Assimilation (अनुनासिक संधी)

When a nasal consonant occurs at a morpheme boundary, it may assimilate to the place of articulation of the following consonant. A nasal before a velar (क, ख, ग, घ) becomes ङ्; before a palatal (च, ज) becomes ञ्; before a dental (त, द) becomes न्; before a labial (प, ब) becomes म्.

Consonant Sandhi with Vowels

When a consonant-final morpheme is followed by a vowel-initial morpheme, in certain cases the consonant at the junction doubles. This is called gemination. For example: उत् + आन = उत्थान (rising up) — the त् assimilates and becomes त्थ.

३. विसर्गसंधी — Visarga Sandhi

Visarga (ः) is a Sanskrit phoneme represented by two dots written after a vowel. It is a voiceless glottal fricative, a sound like a breathed h. Many Sanskrit words used in Marathi end in visarga (नमः, पुनः, दुः). When these words are followed by another word, the visarga undergoes predictable transformations based on the nature of the following sound.

Main Visarga Sandhi Rules

The key visarga transformation rules are as follows:

• Before च / छ: visarga becomes श् → निः + चल = निश्चल (motionless)
• Before त / थ: visarga becomes स् → नमः + ते = नमस्ते
• Before voiced consonants and vowels: visarga becomes र् → निः + आहार = निराहार
• Before स: visarga may be deleted (with possible vowel lengthening) → निः + संशय = निःसंशय or निस्संशय
• Before क / प (unvoiced): visarga may remain as ः or become स्

विग्रह — Splitting the Sandhi

The reverse process — separating the fused sandhi form into its original component morphemes — is called विग्रह. In examinations, both forming (संधी करणे) and splitting (विग्रह) sandhi are tested equally. The method for vigrah involves identifying the changed vowel or consonant at the junction and reversing the applicable rule.

Step-by-step vigrah method:

1. Find the unusual vowel, consonant cluster, or modified sound in the word — this marks the sandhi junction.
2. Identify which sandhi rule could produce that sound.
3. Reverse the rule to find the two original sounds.
4. Split the word at that point into two parts.
5. Check that both parts are meaningful words or morphemes.

Practice Questions

Sandhi in Everyday Marathi Vocabulary

Even if you have never formally studied sandhi, you already know dozens of sandhi-formed words from everyday Marathi use. Recognising the sandhi inside familiar words is the most efficient way to internalise the rules. The following are common Marathi words containing sandhi that most speakers use without realising it.

Words containing गुणसंधी: गणेश, देवेंद्र, सूर्योदय, राजेंद्र, महेश. Words containing दीर्घसंधी: महात्मा, हिमालय, विद्यालय, जनाश्रय. Words containing यणसंधी: अत्यंत, प्रत्युत्तर, स्वागत (सु + आगत). Words containing विसर्गसंधी: नमस्ते, निश्चित, निरोगी, दुर्गंध.

Each of these words is a sandhi-containing compound you can practise vigrahing. When you can automatically identify the sandhi in ten familiar words, the abstract rules will feel concrete and intuitive. This is far more effective than memorising the rules in isolation. Try the grammar quiz generator for interactive identification exercises with immediate feedback.

Sandhi and Samas — The Connection

Many samas compounds also contain sandhi at their junction. For example, the tatpurusha samas राजेंद्र (raj + indra) contains a guna sandhi at the boundary. The dvandva samas नरनारायण (nara + narayana) contains no sandhi because both boundary sounds are compatible without change. When a samas compound contains sandhi, you must first resolve the sandhi before you can identify the samas type and write the vigrah. Always perform sandhi vigrah before samas vigrah in such cases.

Exam Strategy for Sandhi Questions

Sandhi questions in Maharashtra State Board and competitive examinations typically take three forms: (a) identify and name the sandhi in a given word; (b) perform the vigrah of a given sandhi compound; (c) form the sandhi from two given words. For form (a), your answer should state the type (e.g., गुणसंधी) and name the sub-rule (e.g., अ + उ = ओ). For form (b), give the two components separated by + sign and state the sandhi type. For form (c), show the joining formula and write the result. Always show your working — examiners award marks for each step, not just the final answer.

Summary of All Rules

Summary

Sandhi (संधी) describes the sound-level changes that occur at the junction point when two words or morphemes combine. The three categories are: स्वरसंधी (vowel + vowel — four sub-rules: दीर्घ, गुण, वृद्धि, यण), व्यंजनसंधी (consonant boundary — voicing and nasal assimilation), and विसर्गसंधी (visarga transforms based on the following sound). The reverse process, विग्रह, separates a sandhi form back into its two original morphemes. Sandhi is primarily relevant in tatsama vocabulary. For deeper vocabulary built on these roots, see the samas lesson. Practise recognition and vigrah with the grammar quiz generator and verify your sentences with the sentence checker.

Frequently Asked Questions