योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-26, verse-5

देवासुरपताकिन्योस्तद्युद्धमभवत्तयोः ।
अकालोल्वणकल्पान्तभीषणं भुवनान्तरे ॥ ५ ॥

devāsurapatākinyostadyuddhamabhavattayoḥ ,
akālolvaṇakalpāntabhīṣaṇaṃ bhuvanāntare 5

5. devasurapatākinyoḥ tat yuddham abhavat tayoḥ
akāloulvaṇakalpāntabhīṣaṇam bhuvanāntare

5. tayoḥ devasurapatākinyoḥ tat yuddham
bhuvanāntare akāloulvaṇakalpāntabhīṣaṇam abhavat

5. That battle, terrifying like a premature and intense cosmic dissolution (kalpānta), took place in the intermediate space between the two sides whose banners bore gods and asuras.

Words meanings summery:

• देवसुरपताकिन्योः (devasurapatākinyoḥ) - of the two sides (armies) bearing gods and asuras on their banners (of the two (armies/sides) having gods and asuras as banners)

• तत् (tat) - that (referring to the battle) (that, that (referring to a previously mentioned thing))

• युद्धम् (yuddham) - battle (battle, war, fight)

• अभवत् (abhavat) - took place (occurred, happened, was)

• तयोः (tayoḥ) - between those two (sides) (of those two, between those two)

• अकालोउल्वणकल्पान्तभीषणम् (akāloulvaṇakalpāntabhīṣaṇam) - terrifying like a premature and intense cosmic dissolution (kalpānta) (terrifying like an untimely and intense end of a cosmic period)

• भुवनान्तरे (bhuvanāntare) - in the intermediate space (in the intermediate space, in the world, in the space between worlds)

Words meanings and morphology

देवसुरपताकिन्योः (devasurapatākinyoḥ) - of the two sides (armies) bearing gods and asuras on their banners (of the two (armies/sides) having gods and asuras as banners)

(adjective)

Genitive, feminine, dual of devasurapatākin

devasurapatākin - having gods and asuras as banners (referring to armies or sides)

Compound type : bahuvrihi (deva+asura+patākin)

• deva – god
  noun (masculine)
  Root: div (class 4)
• asura – demon
  noun (masculine)
  Prefix: a
  Root: as (class 2)
• patākin – having a banner, banner-bearer
  adjective (masculine)
  Possessive suffix -in from patākā (banner)

Note: Agrees with tayoḥ

तत् (tat) - that (referring to the battle) (that, that (referring to a previously mentioned thing))

(pronoun)

Nominative, neuter, singular of tad

tad - that, this

Note: Agrees with yuddham

युद्धम् (yuddham) - battle (battle, war, fight)

(noun)

Nominative, neuter, singular of yuddha

yuddha - battle, fight, war

Past Passive Participle

Derived from root yudh 'to fight'.

Root: yudh (class 4)

Note: Subject of abhavat

अभवत् (abhavat) - took place (occurred, happened, was)

(verb)

3rd person , singular, active, imperfect (laṅ) of bhū

Imperfect Active

3rd person singular, Imperfect Active

Root: bhū (class 1)

तयोः (tayoḥ) - between those two (sides) (of those two, between those two)

(pronoun)

Genitive, feminine, dual of tad

tad - that, this

Note: Refers to the two sides.

अकालोउल्वणकल्पान्तभीषणम् (akāloulvaṇakalpāntabhīṣaṇam) - terrifying like a premature and intense cosmic dissolution (kalpānta) (terrifying like an untimely and intense end of a cosmic period)

(adjective)

Nominative, neuter, singular of akāloulvaṇakalpāntabhīṣaṇa

akāloulvaṇakalpāntabhīṣaṇa - terrifying like an untimely, intense dissolution of the world

Compound type : bahuvrihi (akāla+ulvaṇa+kalpānta+bhīṣaṇa)

• akāla – untimely, out of season
  adjective (masculine)
  Prefix: a
• ulvaṇa – intense, fierce, excessive
  adjective (masculine)
• kalpānta – end of a kalpa (cosmic period), cosmic dissolution
  noun (masculine)
• bhīṣaṇa – terrifying, dreadful
  adjective (masculine)
  Agent noun from root bhī 'to fear' with suffix -ṣaṇa
  Root: bhī (class 3)

Note: Agrees with yuddham

भुवनान्तरे (bhuvanāntare) - in the intermediate space (in the intermediate space, in the world, in the space between worlds)

(noun)

Locative, neuter, singular of bhuvanāntara

bhuvanāntara - intermediate space, space between worlds, region, world

Compound type : tatpurusha (bhuvana+antara)

• bhuvana – world, realm, being
  noun (neuter)
  Root: bhū (class 1)
• antara – intermediate, interior, space, interval
  noun (neuter)