Shabd Gathan (শব্দ গঠন)
Word Formation in Bengali
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Overview
Shabd Gathan, or word formation, is a foundational topic in Bengali grammar that examines how words originate and enter the language. For WB TET Language I, this topic typically carries 2–4 questions and tests your ability to classify words based on their etymological source—whether they come directly from Sanskrit, evolved through Prakrit, or were borrowed from other languages.
Understanding word formation helps teachers explain vocabulary development to students and makes them aware of the rich, layered history of Bengali. The language draws from Sanskrit, regional dialects, Arabic, Persian, Portuguese, English and tribal languages, reflecting Bengal's cultural and historical interactions.
For the exam, you must be able to identify and categorise words into four main types: tatsam, tadbhav, deshi and bideshi. You should also know the characteristics that distinguish each category and recognise common examples that frequently appear in questions.
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Key Concepts
- **Tatsam (তৎসম)** — Words borrowed directly from Sanskrit with no phonetic change. "Tatsam" literally means "same as that" (Sanskrit). These words retain their original Sanskrit form in Bengali spelling and pronunciation.
- **Tadbhav (তদ্ভব)** — Words derived from Sanskrit but modified through Prakrit and Apabhramsha over centuries. "Tadbhav" means "born from that." These words have changed in sound, spelling or both but their Sanskrit root is traceable.
- **Deshi (দেশি/দেশী)** — Indigenous words with no Sanskrit origin. These come from pre-Aryan languages, tribal dialects (Kol, Munda, Santali) and local Bengali usage. Their etymology is often uncertain.
- **Bideshi (বিদেশী)** — Foreign loan words from non-Sanskrit languages including Arabic, Persian, Turkish, Portuguese, French, Dutch and English. These entered Bengali through trade, administration and cultural contact.
- **Ardha-tatsam (অর্ধ-তৎসম)** — A sub-category of partially Sanskritised words that are neither fully tatsam nor fully tadbhav. They underwent slight phonetic change during adoption.
- **Word formation processes** — Beyond etymology, Bengali forms new words through samasam (compounding), upsarg (prefixes), pratyay (suffixes) and sandhi (joining). These are covered in separate topics but connect to shabd gathan.
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Key Facts and Classifications
### Tatsam Words — Characteristics
- Retain original Sanskrit spelling and pronunciation
- Often used in formal, literary or religious contexts
- Common endings: -ন্ত (ant), -মান (man), -তা (ta), -ত্ব (tva)
**Examples:** | Tatsam | Meaning | |--------|---------| | চন্দ্র | moon | | সূর্য | sun | | পুষ্প | flower | | বৃক্ষ | tree | | হস্ত | hand | | নয়ন | eye | | জল | water |
### Tadbhav Words — Characteristics
- Sanskrit origin but modified through phonetic evolution
- More common in everyday spoken Bengali
- Sound changes include: consonant softening, vowel shifts, syllable reduction
**Examples with Sanskrit Root:** | Sanskrit (Tatsam) | Tadbhav | Meaning | |-------------------|---------|---------| | হস্ত | হাত | hand | | চন্দ্র | চাঁদ | moon | | পুত্র | পুত / ছেলে | son | | মৃত্তিকা | মাটি | soil | | ক্ষীর | খির | milk preparation | | কর্ম | কাজ | work | | রাত্রি | রাত | night |
### Deshi Words — Characteristics
- No traceable Sanskrit etymology
- Originate from Kol, Munda, Santali, Dravidian or unknown sources
- Often refer to local flora, fauna, household items, kinship terms
**Examples:** | Deshi Word | Meaning | |------------|---------| | ঝোল | curry/broth | | ডাব | green coconut | | ঢেঁকি | husking pedal | | কুলা | winnowing fan | | চোঙা | hollow tube | | ডিঙি | small boat | | ঝিঙা | ridge gourd | | পেট | stomach | | মাথা | head |
### Bideshi Words — By Source Language
**Arabic:**
- আল্লাহ (Allah), কলম (pen), তারিখ (date), জিনিস (thing), হিসাব (account), ওকালতি (advocacy)
**Persian:**
- দরজা (door), জানালা (window), বাগান (garden), চশমা (spectacles), নামাজ (prayer), জমিন (land)
**Portuguese:**
- চাবি (key), বালতি (bucket), পাউরুটি (bread), আলমারি (cupboard), গির্জা (church), আনারস (pineapple)
**English:**
- স্কুল (school), অফিস (office), টেবিল (table), পেন (pen), বাস (bus), ট্রেন (train)
**Turkish:**
- বাবা (father), দারোগা (police officer), তোপ (cannon), বেগম (lady)
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Worked Examples
### Example 1: Classification Question **Question:** নিচের কোন শব্দটি তৎসম? — চাঁদ, পুষ্প, হাত, চাবি
**Solution:**
- চাঁদ — tadbhav (from Sanskrit চন্দ্র)
- পুষ্প — **tatsam** (direct Sanskrit, meaning flower)
- হাত — tadbhav (from Sanskrit হস্ত)
- চাবি — bideshi (Portuguese "chave")
**Answer:** পুষ্প
### Example 2: Identifying Tadbhav **Question:** 'মাটি' শব্দটির তৎসম রূপ কী?
**Solution:** মাটি is the tadbhav form meaning "soil/earth." Trace back: মাটি ← Prakrit ← Sanskrit মৃত্তিকা
**Answer:** মৃত্তিকা
### Example 3: Bideshi Identification **Question:** নিম্নলিখিত শব্দগুলির মধ্যে বিদেশী শব্দ কোনটি? — সূর্য, রাত, আলমারি, ফুল
**Solution:**
- সূর্য — tatsam (Sanskrit)
- রাত — tadbhav (from রাত্রি)
- আলমারি — **bideshi** (Portuguese "almário")
- ফুল — tadbhav (from Sanskrit ফুল্ল)
**Answer:** আলমারি
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Common Mistakes
- **Confusing tatsam with tadbhav** → Remember: tatsam words have NO phonetic change from Sanskrit. If the spelling/sound differs even slightly, it is tadbhav. Check: জল (tatsam) vs. জ্বল (different word).
- **Assuming all formal words are tatsam** → Words like অফিস, হাসপাতাল sound formal but are bideshi (English). Always trace the origin, not the register.
- **Classifying common words as deshi by default** → Words like হাত, চাঁদ, কাজ feel "native" but they are tadbhav with clear Sanskrit roots. Deshi words usually lack any Sanskrit connection.
- **Mixing up Portuguese and English bideshi** → Portuguese words entered Bengali 400+ years ago and feel naturalised (চাবি, বালতি, আলপিন). English loans are more recent (টিভি, ফোন). Know the historical source.
- **Ignoring ardha-tatsam** → Words like গিন্নি (from গৃহিণী) or বোষ্টম (from বৈষ্ণব) are partially changed. If a question offers ardha-tatsam as an option, consider it for words with minor Sanskrit modification.
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Quick Reference
- **Tatsam** = "same as Sanskrit" — no change — চন্দ্র, পুষ্প, নয়ন, জল, বৃক্ষ
- **Tadbhav** = "born from Sanskrit" — changed form — চাঁদ, হাত, মাটি, কাজ, রাত
- **Deshi** = indigenous, no Sanskrit root — ঢেঁকি, কুলা, ডাব, ঝোল, পেট
- **Bideshi** = foreign loan — Arabic (কলম), Persian (দরজা), Portuguese (চাবি), English (স্কুল)
- **Test trick**: If the word ends in conjunct consonants or has spellings like ক্ষ, জ্ঞ, it is likely tatsam.
- **Memory aid**: Tatsam words sound "bookish," tadbhav words sound "everyday," deshi words sound "rustic," bideshi words have obvious foreign feel.