योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-80, verse-9

तरुणादित्यलक्षाणां तेज आभास्वरं दधत् ।
आदित्यत्रयसंकाशैः स्थिरविद्युच्चयोल्वणैः ॥ ९ ॥

taruṇādityalakṣāṇāṃ teja ābhāsvaraṃ dadhat ,
ādityatrayasaṃkāśaiḥ sthiravidyuccayolvaṇaiḥ 9

9. taruṇa-āditya-lakṣāṇām tejaḥ ābhāsvaram dadhat
āditya-traya-saṃkāśaiḥ sthira-vidyut-caya-ulvaṇaiḥ

9. (saḥ tamaḥ) taruṇa-āditya-lakṣāṇām ābhāsvaram tejaḥ dadhat,
āditya-traya-saṃkāśaiḥ sthira-vidyut-caya-ulvaṇaiḥ

9. It possessed an effulgent brilliance (tejas) like that of millions of rising suns, and was intensely fierce with stable masses of lightning resembling three suns.

Words meanings summery:

• तरुण-आदित्य-लक्षाणाम् (taruṇa-āditya-lakṣāṇām) - of millions of young/rising suns

• तेजः (tejaḥ) - brilliance, radiance, light, energy, splendor

• आभास्वरम् (ābhāsvaram) - effulgent, shining, brilliant

• दधत् (dadhat) - bearing, holding, possessing

• आदित्य-त्रय-संकाशैः (āditya-traya-saṁkāśaiḥ) - resembling three suns

• स्थिर-विद्युत्-चय-उल्वणैः (sthira-vidyut-caya-ulvaṇaiḥ) - fierce with masses of steady lightning

Words meanings and morphology

तरुण-आदित्य-लक्षाणाम् (taruṇa-āditya-lakṣāṇām) - of millions of young/rising suns

(adjective)

Genitive, plural of taruṇa-āditya-lakṣa

taruṇa-āditya-lakṣa - a million of young suns, relating to millions of young suns

Compound type : Tatpuruṣa (taruṇa+āditya+lakṣa)

• taruṇa – young, fresh, new, rising
  adjective
• āditya – the sun, a solar deity
  noun (masculine)
• lakṣa – a hundred thousand, a lakh, multitude
  noun (neuter)

Note: Qualifies 'tejaḥ' (brilliance).

तेजः (tejaḥ) - brilliance, radiance, light, energy, splendor

(noun)

Accusative, neuter, singular of tejas

tejas - brilliance, radiance, light, energy, splendor, power

Note: Object of the participle 'dadhat'.

आभास्वरम् (ābhāsvaram) - effulgent, shining, brilliant

(adjective)

Accusative, neuter, singular of ābhāsvara

ābhāsvara - effulgent, shining, radiant, splendid

Note: Modifies 'tejaḥ'.

दधत् (dadhat) - bearing, holding, possessing

(adjective)

Nominative, neuter, singular of dadhat

dadhat - bearing, holding, possessing, creating, doing

Present Active Participle

Derived from root 'dhā' (to bear, hold, place).

Root: dhā (class 3)

Note: Agrees with the implied subject 'tamaḥ' (darkness) from the previous verse.

आदित्य-त्रय-संकाशैः (āditya-traya-saṁkāśaiḥ) - resembling three suns

(adjective)

Instrumental, masculine, plural of āditya-traya-saṃkāśa

āditya-traya-saṁkāśa - resembling three suns

Compound type : Tatpuruṣa (āditya+traya+saṃkāśa)

• āditya – the sun, a solar deity
  noun (masculine)
• traya – a triad, a group of three
  noun (neuter)
• saṃkāśa – resembling, like, equal to
  adjective

Note: Qualifies 'sthira-vidyut-caya-ulvaṇaiḥ'.

स्थिर-विद्युत्-चय-उल्वणैः (sthira-vidyut-caya-ulvaṇaiḥ) - fierce with masses of steady lightning

(adjective)

Instrumental, masculine, plural of sthira-vidyut-caya-ulvaṇa

sthira-vidyut-caya-ulvaṇa - intensely fierce or prominent with collections of stable lightning

Compound type : Tatpuruṣa (sthira+vidyut+caya+ulvaṇa)

• sthira – steady, firm, constant, stable
  adjective
• vidyut – lightning, flash of light
  noun (feminine)
• caya – heap, pile, collection, mass, multitude
  noun (masculine)
• ulvaṇa – fierce, intense, excessive, prominent, strong
  adjective

Note: Describes the 'tamaḥ' (darkness) from the previous verse.