महाभारतः mahābhārataḥ - book-7, chapter-145, verse-5

बलार्णवौ ततस्तौ तु समेयातां निशामुखे ।
वातोद्धूतौ क्षुब्धसत्त्वौ भैरवौ सागराविव ॥५॥

5. balārṇavau tatastau tu sameyātāṁ niśāmukhe ,
vātoddhūtau kṣubdhasattvau bhairavau sāgarāviva.

5. balārṇavau tataḥ tau tu sameyātām niśāmukhe
vātoddhūtau kṣubdhasattvau bhairavau sāgarau iva

5. tataḥ tu niśāmukhe vātoddhūtau kṣubdhasattvau
bhairavau sāgarau iva tau balārṇavau sameyātām

5. Then, those two (armies), like two terrifying oceans agitated by wind and teeming with agitated creatures, met at the onset of night.

Words meanings summery:

• बलार्णवौ (balārṇavau) - Referring to the two opposing armies led by Droṇa and Dhṛṣṭadyumna. (two oceans of armies)

• ततः (tataḥ) - then, thereupon, from that

• तौ (tau) - Referring to the two opposing forces/commanders (Droṇa and Dhṛṣṭadyumna, or their armies). (those two)

• तु (tu) - indeed, but, moreover

• समेयाताम् (sameyātām) - they two met

• निशामुखे (niśāmukhe) - at the mouth/beginning of night, at nightfall

• वातोद्धूतौ (vātoddhūtau) - agitated by wind

• क्षुब्धसत्त्वौ (kṣubdhasattvau) - (like agitated marine life in oceans) (with agitated creatures/beings)

• भैरवौ (bhairavau) - terrifying, dreadful

• सागरौ (sāgarau) - two oceans

• इव (iva) - like, as if

Words meanings and morphology

बलार्णवौ (balārṇavau) - Referring to the two opposing armies led by Droṇa and Dhṛṣṭadyumna. (two oceans of armies)

(noun)

Nominative, masculine, dual of balārṇava

balārṇava - ocean of armies, mighty army

Compound type : upamāna-karmadhāraya (bala+arṇava)

• bala – strength, power, force, army
  noun (neuter)
• arṇava – ocean, sea
  noun (masculine)

ततः (tataḥ) - then, thereupon, from that

(indeclinable)

तौ (tau) - Referring to the two opposing forces/commanders (Droṇa and Dhṛṣṭadyumna, or their armies). (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that (demonstrative pronoun)

तु (tu) - indeed, but, moreover

(indeclinable)

समेयाताम् (sameyātām) - they two met

(verb)

3rd person , dual, middle, optative (vidhi-liṅ) of √sam-i

Root √i (to go) with prefix sam. Forms the 3rd dual Ātmanepada of the optative mood.

Prefix: sam

Root: i (class 2)

Note: Used narratively for past action.

निशामुखे (niśāmukhe) - at the mouth/beginning of night, at nightfall

(noun)

Locative, neuter, singular of niśāmukha

niśāmukha - beginning of night, nightfall, evening

Compound type : ṣaṣṭhī-tatpuruṣa (niśā+mukha)

• niśā – night
  noun (feminine)
• mukha – mouth, face, front, beginning, entrance
  noun (neuter)

वातोद्धूतौ (vātoddhūtau) - agitated by wind

(adjective)

Nominative, masculine, dual of vātoddhūta

vātoddhūta - agitated by wind, tossed by wind

Past Passive Participle

Compound: vāta (wind) + uddhūta (agitated). Uddhūta from ut-√dhū (to shake/agitate).

Compound type : tṛtīyā-tatpuruṣa (vāta+uddhūta)

• vāta – wind, air
  noun (masculine)
• uddhūta – agitated, shaken, raised up
  adjective
  Past Passive Participle
  from prefix ut + root √dhū (to shake)
  Prefix: ut
  Root: dhū (class 5)

Note: Agrees with 'tau' and 'sāgarau'.

क्षुब्धसत्त्वौ (kṣubdhasattvau) - (like agitated marine life in oceans) (with agitated creatures/beings)

(adjective)

Nominative, masculine, dual of kṣubdhasattva

kṣubdhasattva - having agitated creatures/beings (within), full of disturbed vitality

Compound: kṣubdha (agitated) + sattva (being/creature).

Compound type : bahuvrīhi (kṣubdha+sattva)

• kṣubdha – agitated, disturbed, troubled
  adjective
  Past Passive Participle
  from root √kṣubh (to agitate, to be agitated)
  Root: kṣubh (class 1)
• sattva – being, creature, essence, strength, courage, reality
  noun (neuter)

Note: Agrees with 'tau' and 'sāgarau'.

भैरवौ (bhairavau) - terrifying, dreadful

(adjective)

Nominative, masculine, dual of bhairava

bhairava - dreadful, terrible, formidable, formidable noise (as of oceans)

Derived from √bhī (to fear).

Root: bhī (class 3)

Note: Agrees with 'tau' and 'sāgarau'.

सागरौ (sāgarau) - two oceans

(noun)

Nominative, masculine, dual of sāgara

sāgara - ocean, sea

Note: Used with 'iva' for comparison.

इव (iva) - like, as if

(indeclinable)