Assam TET · Language I — Assamese / Bengali / Bodo / Hindi / English

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Sandhi and Samas

Sandhi rules and samas in Assamese/Bengali/Hindi.

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Sandhi and Samas

Study Notes for Assam TET — Language I


Overview

Sandhi and Samas are two fundamental concepts in the grammar of Sanskrit-derived Indian languages including Assamese, Bengali, and Hindi. Both deal with word formation but through different mechanisms: Sandhi concerns the junction of sounds when two words or morphemes meet, while Samas (compound words) concerns the combination of two or more words into a single meaningful unit with condensed meaning.

For Assam TET Language I, you must understand the rules governing vowel and consonant changes in Sandhi, identify the type of Sandhi in given examples, and classify Samas compounds by their structural relationships. These questions typically appear as direct identification, transformation, or error-spotting items. Mastery here also strengthens comprehension of literary passages where such formations are common.

The practical value extends to teaching: primary students encounter compound words and sandhi forms in textbooks, and a teacher must be able to break down complex words into their constituent parts for vocabulary instruction.


Key Concepts

  • Sandhi (সন্ধি / संधि) literally means "joining" — it is the phonetic fusion that occurs at the boundary of two morphemes or words, producing a single altered form.
  • Samas (সমাস / समास) literally means "throwing together" — it is the grammatical compounding of two or more words into one, with the connecting particles (vibhakti) dropped.
  • Sandhi-vichchhed (সন্ধি-বিচ্ছেদ / संधि-विच्छेद) is the separation or analysis of a sandhi back into its original components — a common exam task.
  • Samas-vigraha (সমাস-বিগ্রহ / समास-विग्रह) is the expansion of a compound word into its full phrasal meaning — the reverse operation of compounding.
  • Sandhi is phonological (sound-based), while Samas is syntactic-semantic (meaning and grammar-based).
  • In Sandhi, the change is obligatory once conditions are met; in Samas, formation is optional but once formed, it behaves as a single word.
  • Both processes are inherited from Sanskrit and operate similarly across Assamese, Bengali, and Hindi, though script and pronunciation differ.

Formulas / Key Facts

Three Main Types of Sandhi

TypeDescriptionExample (Hindi)
Swar Sandhi (स्वर संधि)Vowel + Vowel junctionविद्या + आलय = विद्यालय
Vyanjan Sandhi (व्यंजन संधि)Consonant + Vowel/Consonantजगत् + नाथ = जगन्नाथ
Visarg Sandhi (विसर्ग संधि)Visarga (ः) + Vowel/Consonantदुः + गम = दुर्गम

Swar Sandhi Sub-rules

  1. Deergh Sandhi: Similar vowels combine into a long vowel (अ + अ = आ)
  2. Guna Sandhi: अ/आ + इ/ई = ए; अ/आ + उ/ऊ = ओ
  3. Vriddhi Sandhi: अ/आ + ए/ऐ = ऐ; अ/आ + ओ/औ = औ
  4. Yan Sandhi: इ/उ/ऋ + dissimilar vowel → य/व/र + vowel
  5. Ayadi Sandhi: ए + vowel = अय्; ओ + vowel = अव्

Six Main Types of Samas

TypeHead PositionExample (Hindi)Vigraha
AvyayibhavFirst word dominantयथाशक्तिशक्ति के अनुसार
TatpurushSecond word dominantराजपुत्रराजा का पुत्र
KarmadharayaBoth co-equal (adj + noun)नीलकमलनीला कमल
DviguNumerical first elementत्रिलोकतीन लोकों का समाहार
DvandvaBoth equally importantमाता-पितामाता और पिता
BahuvrihiMeaning refers to third entityलंबोदरलंबा है उदर जिसका (Ganesha)

Assamese/Bengali Equivalents

  • Swar Sandhi = স্বৰসন্ধি (Assamese) / স্বরসন্ধি (Bengali)
  • Vyanjan Sandhi = ব্যঞ্জনসন্ধি
  • Tatpurush = তৎপুৰুষ / তৎপুরুষ
  • Dvandva = দ্বন্দ্ব
  • Bahuvrihi = বহুব্ৰীহি / বহুব্রীহি

Worked Examples

Example 1: Sandhi-vichchhed (Hindi)

Word: हिमालय Step 1: Identify the likely components — हिम (snow) + आलय (abode) Step 2: Check the junction: अ + आ = आ (Deergh Sandhi) Answer: हिम + आलय = हिमालय (Swar Sandhi — Deergh type)

Example 2: Samas Identification (Hindi)

Word: चतुर्भुज Step 1: Vigraha — चार भुजाएँ हैं जिसकी (one who has four arms) Step 2: The compound refers to a third entity (Vishnu), not to "four" or "arms" themselves Answer: Bahuvrihi Samas

Example 3: Sandhi (Assamese/Bengali)

Word: বিদ্যালয় (bidyalay) Step 1: Components — বিদ্যা (knowledge) + আলয় (abode) Step 2: আ + আ = আ (Deergh Swar Sandhi) Answer: বিদ্যা + আলয় = বিদ্যালয়

Example 4: Samas (Bengali)

Word: মহারাজ Step 1: Vigraha — মহান যে রাজা (a king who is great) Step 2: Adjective + Noun with equal emphasis on both Answer: Karmadharaya Samas


Common Mistakes

  • Confusing Karmadharaya with Tatpurush: Students assume any compound with an adjective is Karmadharaya. Correct approach: In Karmadharaya, both elements describe the same entity (নীল + কমল = blue lotus, a single thing). In Tatpurush, there is a case relationship (রাজার পুত্র = son OF the king — genitive).
  • Ignoring Bahuvrihi's external reference: Students identify "লম্বোদর" as Karmadharaya (large + belly). Correct approach: Ask — does the compound refer to the belly itself or to someone characterized by it? If a third entity (Ganesha), it is Bahuvrihi.
  • Applying Sandhi rules of one language to another: Hindi visarg sandhi rules differ slightly from Assamese pronunciation conventions. Correct approach: Study language-specific examples; do not blindly transfer rules.
  • Forgetting Dvigu requires a numeral: Students label any collective noun as Dvigu. Correct approach: Dvigu must have a numerical first element (त्रि, पंच, सप्त, etc.).
  • Mistaking Dvandva for listing: Any list is not Dvandva. Correct approach: Dvandva joins two co-equal, independent words with an implicit "and" — both retain full semantic weight (রাম-লক্ষ্মণ, माता-पिता).

Quick Reference

  1. Sandhi = sound junction; Samas = word compounding.
  2. Three Sandhi types: Swar (vowel), Vyanjan (consonant), Visarg.
  3. Six Samas types: Avyayibhav, Tatpurush, Karmadharaya, Dvigu, Dvandva, Bahuvrihi.
  4. Bahuvrihi test: Does the compound refer to an outside entity? If yes → Bahuvrihi.
  5. Deergh Sandhi: Same/similar short vowels merge into long vowel.
  6. Samas-vigraha restores dropped case particles: राजपुत्र → राजा का पुत्र.

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Notes generated on 28 Jun 2026