महाभारतः mahābhārataḥ - book-1, chapter-25, verse-20

सरस्यस्मिन्महाकायौ पूर्ववैरानुसारिणौ ।
तयोरेकतरः श्रीमान्समुपैति महागजः ॥२०॥

20. sarasyasminmahākāyau pūrvavairānusāriṇau ,
tayorekataraḥ śrīmānsamupaiti mahāgajaḥ.

20. sarasi asmin mahākāyau pūrvavairānuṣāriṇau
tayoḥ ekataraḥ śrīmān samupaiti mahāgajaḥ

20. In this very lake, those two colossal beings, still driven by their former enmity, include the glorious great elephant as one of them, who now approaches.

Words meanings summery:

• सरसि (sarasi) - in the lake

• अस्मिन् (asmin) - in this very lake (in this (masculine/neuter locative singular))

• महाकायौ (mahākāyau) - having large bodies, colossal (dual)

• पूर्ववैरानुषारिणौ (pūrvavairānuṣāriṇau) - still driven by their old animosity (following former enmity (dual))

• तयोः (tayoḥ) - of those two

• एकतरः (ekataraḥ) - one of them (the elephant) (one of two, either one)

• श्रीमान् (śrīmān) - majestic, powerful (describing the elephant) (glorious, prosperous, beautiful, fortunate)

• समुपैति (samupaiti) - approaches, comes near

• महागजः (mahāgajaḥ) - great elephant

Words meanings and morphology

सरसि (sarasi) - in the lake

(noun)

Locative, neuter, singular of saras

saras - lake, pond, pool

अस्मिन् (asmin) - in this very lake (in this (masculine/neuter locative singular))

(pronoun)

Locative, neuter, singular of idam

idam - this

Note: Also could be masculine. Here it refers to `saras` (neuter).

महाकायौ (mahākāyau) - having large bodies, colossal (dual)

(adjective)

Nominative, masculine, dual of mahākāya

mahākāya - large-bodied, colossal

Compound type : bahuvrīhi (mahat+kāya)

• mahat – great, large, vast
  adjective
• kāya – body, collection
  noun (masculine)

Note: Refers to the elephant and tortoise.

पूर्ववैरानुषारिणौ (pūrvavairānuṣāriṇau) - still driven by their old animosity (following former enmity (dual))

(adjective)

Nominative, masculine, dual of pūrvavairānuṣārin

pūrvavairānuṣārin - following old enmity

agent noun

Derived from `pūrvavaira` (old enmity) and root `sṛ` (to go, follow).

Compound type : tatpuruṣa (pūrva+vaira+anuṣārin)

• pūrva – former, previous, old
  adjective
• vaira – enmity, hostility, revenge
  noun (neuter)
• anuṣārin – following, pursuing
  adjective (masculine)
  agent noun
  From root `sṛ` with prefix `anu`.
  Prefix: anu
  Root: sṛ (class 1)

Note: Refers to the elephant and tortoise.

तयोः (tayoḥ) - of those two

(pronoun)

Genitive, masculine, dual of tad

tad - that

Note: Refers to the elephant and tortoise.

एकतरः (ekataraḥ) - one of them (the elephant) (one of two, either one)

(pronoun)

Nominative, masculine, singular of ekatara

ekatara - one of two, either, one side

Derived from `eka` with suffix `tara`.

श्रीमान् (śrīmān) - majestic, powerful (describing the elephant) (glorious, prosperous, beautiful, fortunate)

(adjective)

Nominative, masculine, singular of śrīmat

śrīmat - possessing glory, prosperous, splendid, majestic

Possessive adjective from `śrī`.

Note: Agrees with `mahāgajaḥ`.

समुपैति (samupaiti) - approaches, comes near

(verb)

3rd person , singular, active, present (laṭ) of samupe

Prefixes: sam+upa

Root: i (class 2)

महागजः (mahāgajaḥ) - great elephant

(noun)

Nominative, masculine, singular of mahāgaja

mahāgaja - great elephant

Compound type : karmadhāraya (mahat+gaja)

• mahat – great, large, vast
  adjective
• gaja – elephant
  noun (masculine)

Note: Subject of `samupaiti`.