योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-91, verse-31

दारुदारणदुर्वारदीप्तं ज्वलनमाततम् ।
यज्ञाग्निदाहकल्याणं विस्फोटकठिनारवम् ॥ ३१ ॥

dārudāraṇadurvāradīptaṃ jvalanamātatam ,
yajñāgnidāhakalyāṇaṃ visphoṭakaṭhināravam 31

31. dārudāraṇadurvāradīptam jvalanam ātatam
yajñāgnidāhakalyāṇam visphoṭakaṭhināravam

31. dārudāraṇadurvāradīptam ātatam jvalanam
yajñāgnidāhakalyāṇam visphoṭakaṭhināravam

31. The widely spread, blazing fire, irresistible in splitting wood, whose burning is like that of an auspicious Vedic ritual (yajña) fire, and which has a harsh, explosive sound.

Words meanings summery:

• दारुदारणदुर्वारदीप्तम् (dārudāraṇadurvāradīptam) - Intensely shining and unstoppable as it tears through wood. (blazing, irresistible, splitting wood)

• ज्वलनम् (jvalanam) - The actively burning entity, a fire. (blazing, burning, a flame, fire)

• आततम् (ātatam) - Widely expanded or intensely spread. (spread out, extended, vast, fierce)

• यज्ञाग्निदाहकल्याणम् (yajñāgnidāhakalyāṇam) - The intense burning has a purifying or profoundly impactful nature, similar to a Vedic ritual (yajña) fire. (beneficial through burning like a sacrificial fire, whose burning for welfare is like a sacrificial fire)

• विस्फोटकठिनारवम् (visphoṭakaṭhināravam) - Characterized by a loud, violent, and jarring sound of explosion. (with a harsh explosive sound)

Words meanings and morphology

दारुदारणदुर्वारदीप्तम् (dārudāraṇadurvāradīptam) - Intensely shining and unstoppable as it tears through wood. (blazing, irresistible, splitting wood)

(adjective)

Accusative, neuter, singular of dārudāraṇadurvāradīpta

dārudāraṇadurvāradīpta - blazing, irresistible in splitting wood

Compound type : bahuvrīhi (dāru+dāraṇa+durvāra+dīpta)

• dāru – wood, timber
  noun (neuter)
• dāraṇa – splitting, tearing, cleaving
  noun/verbal adjective (neuter)
  nominal derivative
  From root dṛ (to tear, split) + ana suffix
  Root: dṛ (class 6)
• durvāra – hard to check, irresistible, difficult to ward off
  adjective (masculine/neuter)
  `dur` (bad, difficult) + `vāra` (checking)
  Root: vṛ (class 5)
• dīpta – blazing, shining, inflamed
  participle (neuter)
  Past Passive Participle
  From root dīp (to shine, blaze) + kta suffix
  Root: dīp (class 4)

Note: Describes `jvalanam`.

ज्वलनम् (jvalanam) - The actively burning entity, a fire. (blazing, burning, a flame, fire)

(noun)

Accusative, neuter, singular of jvalana

jvalana - burning, blazing, fire

nominal derivative (क्रियार्थकम्)

From root jval (to burn, blaze) + ana suffix

Root: jval (class 1)

Note: The object being described.

आततम् (ātatam) - Widely expanded or intensely spread. (spread out, extended, vast, fierce)

(participle)

Accusative, neuter, singular of ātata

ātata - stretched, spread, extensive, fierce

Past Passive Participle

From root tan (to stretch) with prefix ā + kta suffix

Prefix: ā

Root: tan (class 8)

यज्ञाग्निदाहकल्याणम् (yajñāgnidāhakalyāṇam) - The intense burning has a purifying or profoundly impactful nature, similar to a Vedic ritual (yajña) fire. (beneficial through burning like a sacrificial fire, whose burning for welfare is like a sacrificial fire)

(adjective)

Accusative, neuter, singular of yajñāgnidāhakalyāṇa

yajñāgnidāhakalyāṇa - whose burning is auspicious like a sacrificial fire

Compound type : bahuvrīhi (yajñāgni+dāhaka+kalyāṇa)

• yajñāgni – sacrificial fire
  noun (masculine)
  Compound of yajña (Vedic ritual) and agni (fire)
• dāhaka – burning, consuming, incendiary
  adjective (masculine)
  agent noun (ṇaka suffix)
  From root dah (to burn) + ṇaka suffix
  Root: dah (class 1)
• kalyāṇa – auspicious, excellent, welfare, beautiful
  adjective/noun (neuter)

विस्फोटकठिनारवम् (visphoṭakaṭhināravam) - Characterized by a loud, violent, and jarring sound of explosion. (with a harsh explosive sound)

(adjective)

Accusative, neuter, singular of visphoṭakaṭhinārava

visphoṭakaṭhinārava - having a harsh explosive sound

Compound type : bahuvrīhi (visphoṭaka+kaṭhina+ārava)

• visphoṭaka – explosion, cracking, burst
  noun/adjective (masculine/neuter)
  agent noun (ṇaka suffix)
  From root sphuṭ (to burst, split) with prefix vi
  Prefix: vi
  Root: sphuṭ (class 6)
• kaṭhina – harsh, hard, rigid, strong
  adjective (neuter)
• ārava – sound, cry, noise
  noun (masculine)
  nominal derivative
  From root ru (to sound) with prefix ā
  Prefix: ā
  Root: ru (class 2)