महाभारतः mahābhārataḥ - book-8, chapter-63, verse-29

तावुभौ प्रजिहीर्षेतामिन्द्रवृत्राविवाभितः ।
भीमरूपधरावास्तां महाधूमाविव ग्रहौ ॥२९॥

29. tāvubhau prajihīrṣetāmindravṛtrāvivābhitaḥ ,
bhīmarūpadharāvāstāṁ mahādhūmāviva grahau.

29. tau ubhau prajihīrṣetām indravṛtrā iva abhitaḥ
bhīmarūpadharau āstām mahādhūmau iva grahau

29. tau ubhau indravṛtrā iva abhitaḥ prajihīrṣetām
bhīmarūpadharau mahādhūmau grahau iva āstām

29. Those two desired to conquer each other from all sides, just like Indra and Vṛtra. They stood, having assumed terrifying forms, resembling two great smoky planets (graha).

Words meanings summery:

• तौ (tau) - those two

• उभौ (ubhau) - both

• प्रजिहीर्षेताम् (prajihīrṣetām) - they desired to conquer/destroy

• इन्द्रवृत्रा (indravṛtrā) - Indra and Vṛtra

• इव (iva) - like, as if, similar to

• अभितः (abhitaḥ) - from all sides, around, near

• भीमरूपधरौ (bhīmarūpadharau) - having terrifying forms, assuming dreadful shapes

• आस्ताम् (āstām) - they were, they existed

• महाधूमौ (mahādhūmau) - great and smoky

• इव (iva) - like, as if, similar to

• ग्रहौ (grahau) - celestial bodies or malevolent entities (demons) often described as causing trouble (planets, seize, grasp, demons)

Words meanings and morphology

तौ (tau) - those two

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

उभौ (ubhau) - both

(adjective)

Nominative, masculine, dual of ubha

ubha - both

प्रजिहीर्षेताम् (prajihīrṣetām) - they desired to conquer/destroy

(verb)

3rd person , dual, active, optative (vidhiliṅ) of prajihīrṣ

desiderative stem

Derived from pra-√hṛ (desiderative, stem prajihīrṣa)

Prefix: pra

Root: hṛ (class 1)

इन्द्रवृत्रा (indravṛtrā) - Indra and Vṛtra

(compound noun)

Compound type : dvandva (indra+vṛtra)

• indra – Indra (chief Vedic deity, god of lightning, storms, rivers, and war)
  proper noun (masculine)
• vṛtra – Vṛtra (a Vedic serpent or dragon demon, adversary of Indra)
  proper noun (masculine)

इव (iva) - like, as if, similar to

(indeclinable)

अभितः (abhitaḥ) - from all sides, around, near

(indeclinable)

Derived from abhi + suffix -tas

भीमरूपधरौ (bhīmarūpadharau) - having terrifying forms, assuming dreadful shapes

(adjective)

Nominative, masculine, dual of bhīmarūpadhara

bhīmarūpadhara - assuming a terrifying form

Compound type : bahuvrihi (bhīma+rūpa+dhara)

• bhīma – terrible, dreadful, fearful
  adjective (masculine)
• rūpa – form, shape, appearance
  noun (neuter)
• dhara – bearing, holding, wearing, possessing
  adjective (masculine)
  Agent noun from √dhṛ
  Root: dhṛ (class 1)

आस्ताम् (āstām) - they were, they existed

(verb)

3rd person , dual, active, imperfect (laṅ) of √as

Root: as (class 2)

महाधूमौ (mahādhūmau) - great and smoky

(adjective)

Nominative, masculine, dual of mahādhūma

mahādhūma - great smoke, resembling great smoke

Compound type : karmadhāraya (mahā+dhūma)

• mahā – great, large, mighty
  adjective (feminine)
• dhūma – smoke, fume
  noun (masculine)

इव (iva) - like, as if, similar to

(indeclinable)

ग्रहौ (grahau) - celestial bodies or malevolent entities (demons) often described as causing trouble (planets, seize, grasp, demons)

(noun)

Nominative, masculine, dual of graha

graha - planet; demon; seizing, holding

Derived from √grah

Root: grah (class 9)