योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-78, verse-12

तिमिरैकार्णवौर्वाग्निज्वालाविवलनामिव ।
गर्जद्धनघटाटोपपीवरासितकन्धराम् ॥ १२ ॥

timiraikārṇavaurvāgnijvālāvivalanāmiva ,
garjaddhanaghaṭāṭopapīvarāsitakandharām 12

12. timiraikārṇavauvāgnijvālāvivalanām iva
garjaddhanaghaṭāṭopapīvarāsitakandharām

12. timiraikārṇavauvāgnijvālāvivalanām iva
garjaddhanaghaṭāṭopapīvarāsitakandharām

12. She, who appears like the agitated flames of the submarine fire in the singular ocean of darkness, and whose robust, dark neck resembles the tumultuous mass of roaring, dense clouds.

Words meanings summery:

• तिमिरैकार्णवौवाग्निज्वालाविवलनाम् (timiraikārṇavauvāgnijvālāvivalanām) - like the flickering of the flames of the submarine fire in the sole ocean of darkness

• इव (iva) - like, as, as if

• गर्जद्धनघटाटोपपीवरासितकन्धराम् (garjaddhanaghaṭāṭopapīvarāsitakandharām) - whose neck is plump and dark like the mass/multitude of roaring, dense clouds

Words meanings and morphology

तिमिरैकार्णवौवाग्निज्वालाविवलनाम् (timiraikārṇavauvāgnijvālāvivalanām) - like the flickering of the flames of the submarine fire in the sole ocean of darkness

(noun)

Accusative, feminine, singular of timiraikārṇavauvāgnijvālāvivalana

timiraikārṇavauvāgnijvālāvivalana - the agitation/flickering of the flames of the submarine fire in the single ocean of darkness

Compound type : tatpuruṣa (timira+eka+arṇava+aurvāgni+jvālā+vivalana)

• timira – darkness, gloom
  noun (neuter)
• eka – one, single, sole
  numeral
• arṇava – ocean, sea
  noun (masculine)
• aurvāgni – submarine fire
  noun (masculine)
• jvālā – flame, blaze
  noun (feminine)
• vivalana – agitation, flickering, trembling, waving
  noun (neuter)
  Derived from vi + val + ana (noun suffix)
  Prefix: vi
  Root: val (class 1)

Note: Qualifies the implied feminine subject.

इव (iva) - like, as, as if

(indeclinable)

गर्जद्धनघटाटोपपीवरासितकन्धराम् (garjaddhanaghaṭāṭopapīvarāsitakandharām) - whose neck is plump and dark like the mass/multitude of roaring, dense clouds

(adjective)

Accusative, feminine, singular of garjaddhanaghaṭāṭopapīvarāsitakandharā

garjaddhanaghaṭāṭopapīvarāsitakandharā - having a stout, dark neck resembling the mass of roaring dense clouds

Compound type : bahuvrīhi (garjat+ghana+ghaṭā+āṭopa+pīvara+asita+kandharā)

• garjat – roaring, thundering
  adjective (masculine)
  Present Active Participle
  From root garj (to roar) + śatṛ suffix.
  Root: garj (class 1)
• ghana – dense, thick, cloud
  adjective/noun (masculine)
• ghaṭā – multitude, mass, swarm, collection
  noun (feminine)
• āṭopa – pomp, ostentation, swelling, mass, tumultuous sound
  noun (masculine)
  From root ṭup with prefix ā
  Prefix: ā
  Root: ṭup (class 1)
• pīvara – fat, plump, stout, massive
  adjective (masculine)
• asita – dark, black, un-bound
  adjective (masculine)
• kandharā – neck
  noun (feminine)

Note: Qualifies the implied feminine subject.