योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-38, verse-15

विनिर्गन्तुं प्रववृते रणादथ बलद्वयम् ।
वारिपूरश्चतुर्दिक्षु प्रलयैकार्णवादिव ॥ १५ ॥

vinirgantuṃ pravavṛte raṇādatha baladvayam ,
vāripūraścaturdikṣu pralayaikārṇavādiva 15

15. vinirgantum pravavṛte raṇāt atha baladvayam
vāripūraḥ caturdikṣu pralayāikārṇavāt iva

15. atha baladvayam raṇāt vinirgantum pravavṛte,
caturdikṣu vāripūraḥ pralayāikārṇavāt iva

15. Then the two armies began to withdraw from the battle, spreading in all four directions like a deluge of water from the single cosmic ocean (pralayaikārṇava) at the time of universal dissolution.

Words meanings summery:

• विनिर्गन्तुम् (vinirgantum) - to withdraw (to go out, to exit, to depart)

• प्रववृते (pravavṛte) - began (began, started, proceeded)

• रणात् (raṇāt) - from the battle (from battle, from war)

• अथ (atha) - then (then, thereupon, now, and)

• बलद्वयम् (baladvayam) - the two armies (the pair of armies, two forces)

• वारिपूरः (vāripūraḥ) - a deluge of water (flood of water, deluge)

• चतुर्दिक्षु (caturdikṣu) - in all four directions (in all four directions, on all sides)

• प्रलयाइकार्णवात् (pralayāikārṇavāt) - from the single cosmic ocean (pralayaikārṇava) (from the single ocean of dissolution)

• इव (iva) - like (like, as if)

Words meanings and morphology

विनिर्गन्तुम् (vinirgantum) - to withdraw (to go out, to exit, to depart)

(verb)

infinitive of vinirgam

Infinitive

From `vi-nir-√gam`

Prefixes: vi+nir

Root: gam (class 1)

Note: `tumun` infinitive.

प्रववृते (pravavṛte) - began (began, started, proceeded)

(verb)

3rd person , singular, middle, perfect (lit) of pravṛt

From `pra-√vṛt`

Prefix: pra

Root: vṛt (class 1)

रणात् (raṇāt) - from the battle (from battle, from war)

(noun)

Ablative, masculine, singular of raṇa

raṇa - battle, war, conflict

अथ (atha) - then (then, thereupon, now, and)

(indeclinable)

Note: Marks succession of events.

बलद्वयम् (baladvayam) - the two armies (the pair of armies, two forces)

(noun)

Nominative, neuter, singular of baladvaya

baladvaya - a pair of armies, two forces

Compound type : tatpurusha (bala+dvaya)

• bala – army, force, strength
  noun (neuter)
• dvaya – pair, couple, duality
  noun (neuter)

Note: Could also be accusative, but nominative makes more sense as the subject of `pravavṛte`.

वारिपूरः (vāripūraḥ) - a deluge of water (flood of water, deluge)

(noun)

Nominative, masculine, singular of vāripūra

vāripūra - flood of water, deluge

Compound type : tatpurusha (vāri+pūra)

• vāri – water
  noun (neuter)
• pūra – flood, stream, abundance
  noun (masculine)

Note: Used in comparison.

चतुर्दिक्षु (caturdikṣu) - in all four directions (in all four directions, on all sides)

(noun)

Locative, feminine, plural of caturdiś

caturdiś - the four quarters or directions

Compound type : dvigu (catur+diś)

• catur – four
  numeral
• diś – direction, quarter
  noun (feminine)

प्रलयाइकार्णवात् (pralayāikārṇavāt) - from the single cosmic ocean (pralayaikārṇava) (from the single ocean of dissolution)

(noun)

Ablative, masculine, singular of pralayāikārṇava

pralayāikārṇava - the single ocean existing at the time of universal dissolution (pralaya)

Compound type : tatpurusha (pralaya+eka+arṇava)

• pralaya – dissolution, annihilation, cosmic destruction (pralaya)
  noun (masculine)
  From `pra-√lī` (to dissolve, melt)
  Prefix: pra
  Root: lī (class 4)
• eka – one, single
  numeral (masculine)
• arṇava – ocean, sea
  noun (masculine)

इव (iva) - like (like, as if)

(indeclinable)

Note: Particle of comparison.