योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-76, verse-18

तेन ज्वालाचलाः प्रान्तोड्डीनाङ्गारविहंगमाः ।
लोलोल्मुकवनाक्रान्ता जग्मुरग्निदिशं द्रुतम् ॥ १८ ॥

tena jvālācalāḥ prāntoḍḍīnāṅgāravihaṃgamāḥ ,
lololmukavanākrāntā jagmuragnidiśaṃ drutam 18

18. tena jvālācalāḥ prāntoḍḍīnāṅgāravihagamāḥ
lololmukavanākrāntāḥ jagmuḥ agnidiśam drutam

18. tena jvālācalāḥ prāntoḍḍīnāṅgāravihagamāḥ
lololmukavanākrāntāḥ drutam agnidiśam jagmuḥ

18. Carried by that wind, these mountains of flame—from whose edges embers flew like birds, and which were covered by forests of flickering firebrands—swiftly moved towards the southeastern direction.

Words meanings summery:

• तेन (tena) - by that, by it

• ज्वालाचलाः (jvālācalāḥ) - mountains of flame, fiery mountains

• प्रान्तोड्डीनाङ्गारविहगमाः (prāntoḍḍīnāṅgāravihagamāḥ) - whose birds were flying coals from their edges, having flying ember-birds at their borders

• लोलोल्मुकवनाक्रान्ताः (lololmukavanākrāntāḥ) - covered by forests of flickering firebrands

• जग्मुः (jagmuḥ) - went, moved

• अग्निदिशम् (agnidiśam) - to the direction of Agni, to the southeast

• द्रुतम् (drutam) - quickly, swiftly

Words meanings and morphology

तेन (tena) - by that, by it

(pronoun)

Instrumental, masculine, singular of tad

tad - that, it

Note: Refers to the 'kalpamāruta' (cosmic deluge wind) from the previous verse.

ज्वालाचलाः (jvālācalāḥ) - mountains of flame, fiery mountains

(noun)

Nominative, masculine, plural of jvālācala

jvālācala - mountain of flame, blazing mountain

Compound type : Karma-Tatpuruṣa (jvālā+acala)

• jvālā – flame, blaze, glow
  noun (feminine)
• acala – mountain (lit. unmoving)
  noun (masculine)

प्रान्तोड्डीनाङ्गारविहगमाः (prāntoḍḍīnāṅgāravihagamāḥ) - whose birds were flying coals from their edges, having flying ember-birds at their borders

(adjective)

Nominative, masculine, plural of prāntoḍḍīnāṅgāravihagama

prāntoḍḍīnāṅgāravihagama - having embers flying up from the edges like birds

Compound type : Bahuvrīhi (prānta+uḍḍīna+aṅgāra+vihagama)

• prānta – edge, extremity, border
  noun (masculine)
• uḍḍīna – flown up, flying
  adjective (neuter)
  Past Passive Participle
  Derived from root 'ḍī' (to fly) with prefix 'ut'.
  Prefix: ut
  Root: ḍī (class 4)
• aṅgāra – coal, ember
  noun (masculine)
• vihagama – bird (lit. moving in the sky)
  noun (masculine)

लोलोल्मुकवनाक्रान्ताः (lololmukavanākrāntāḥ) - covered by forests of flickering firebrands

(adjective)

Nominative, masculine, plural of lololmukavanākrānta

lololmukavanākrānta - covered by forests of flickering firebrands

Compound type : Tatpuruṣa (lola+ulmuka+vana+ākrānta)

• lola – flickering, trembling, unsteady
  adjective (masculine)
• ulmuka – firebrand, blazing log, torch
  noun (masculine)
• vana – forest, wood, grove
  noun (neuter)
• ākrānta – overcome, covered, pervaded, attacked
  adjective (masculine)
  Past Passive Participle
  Derived from root 'kram' (to step, go) with prefix 'ā'.
  Prefix: ā
  Root: kram (class 1)

जग्मुः (jagmuḥ) - went, moved

(verb)

3rd person , plural, active, perfect (liṭ) of gam

Root: gam (class 1)

अग्निदिशम् (agnidiśam) - to the direction of Agni, to the southeast

(noun)

Accusative, feminine, singular of agnidiś

agnidiś - southeast direction (the direction associated with Agni, the fire god)

Compound type : Tatpuruṣa (agni+diś)

• agni – fire, god of fire
  noun (masculine)
• diś – direction, quarter, region
  noun (feminine)

द्रुतम् (drutam) - quickly, swiftly

(indeclinable)

Note: Adverbial use of neuter singular accusative form of the adjective 'druta'.