महाभारतः mahābhārataḥ - book-1, chapter-31, verse-18

बहूनीह सहस्राणि प्रयुतान्यर्बुदानि च ।
अशक्यान्येव संख्यातुं भुजगानां तपोधन ॥१८॥

18. bahūnīha sahasrāṇi prayutānyarbudāni ca ,
aśakyānyeva saṁkhyātuṁ bhujagānāṁ tapodhana.

18. bahūni iha sahasrāṇi prayutāni arbudāni ca
aśakyāni eva saṅkhyātum bhujagānām tapodhana

18. O ascetic, there are indeed many thousands, millions, and even billions of serpents here, which are impossible to count.

Words meanings summery:

• बहूनि (bahūni) - many

• इह (iha) - indeed (here, indeed)

• सहस्राणि (sahasrāṇi) - thousands

• प्रयुतानि (prayutāni) - tens of millions

• अर्बुदानि (arbudāni) - hundreds of millions, billions

• च (ca) - and

• अशक्यानि (aśakyāni) - impossible

• एव (eva) - indeed, truly (indeed, only)

• सङ्ख्यातुम् (saṅkhyātum) - to count (to count, to enumerate)

• भुजगानाम् (bhujagānām) - of serpents

• तपोधन (tapodhana) - O ascetic (O ascetic (one whose wealth is austerity))

Words meanings and morphology

बहूनि (bahūni) - many

(adjective)

Nominative, neuter, plural of bahu

bahu - many, much, abundant

इह (iha) - indeed (here, indeed)

(indeclinable)

सहस्राणि (sahasrāṇi) - thousands

(noun)

Nominative, neuter, plural of sahasra

sahasra - thousand

प्रयुतानि (prayutāni) - tens of millions

(noun)

Nominative, neuter, plural of prayuta

prayuta - ten lakhs, a million (1,000,000) or ten millions (10,000,000)

past passive participle

derived from root 'yu' with prefix 'pra'

Prefix: pra

Root: yu (class 2)

अर्बुदानि (arbudāni) - hundreds of millions, billions

(noun)

Nominative, neuter, plural of arbuda

arbuda - a large number (100,000,000 or 1,000,000,000), a foetus, a cloud, a serpent

च (ca) - and

(indeclinable)

अशक्यानि (aśakyāni) - impossible

(adjective)

Nominative, neuter, plural of aśakya

aśakya - impossible, unable, not to be done

potential passive participle (kṛtya)

derived from root 'śak' with suffix '-ya' and negative 'a'

Prefix: a

Root: śak (class 5)

एव (eva) - indeed, truly (indeed, only)

(indeclinable)

सङ्ख्यातुम् (saṅkhyātum) - to count (to count, to enumerate)

(verb)

infinitive (tumun) of saṅkhyā

infinitive

infinitive of root 'khyā' with prefix 'sam'

Prefix: sam

Root: khyā (class 2)

भुजगानाम् (bhujagānām) - of serpents

(noun)

Genitive, masculine, plural of bhujaga

bhujaga - serpent, snake (lit. moving on the arm/shoulder)

from bhuj + ga (gacchati)

Root: gam (class 1)

तपोधन (tapodhana) - O ascetic (O ascetic (one whose wealth is austerity))

(noun)

Vocative, masculine, singular of tapodhana

tapodhana - one whose wealth is austerity, ascetic, sage

Compound type : bahuvrīhi (tapas+dhana)

• tapas – austerity, penance, heat
  noun (neuter)
• dhana – wealth, riches, property
  noun (neuter)