योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-39, verse-4

मृष्टध्वान्तासिवलिते दिननागेन्द्रमस्तके ।
संध्यारागारुणं कीर्णं तारानिकरमौक्तिकम् ॥ ४ ॥

mṛṣṭadhvāntāsivalite dinanāgendramastake ,
saṃdhyārāgāruṇaṃ kīrṇaṃ tārānikaramauktikam 4

4. mṛṣṭadhvāntāsivalite dinanāgendramastake
sandhyārāgāruṇam kīrṇam tārānikaramauktikam

4. mṛṣṭadhvāntāsivalite dinanāgendramastake
sandhyārāgāruṇam tārānikaramauktikam kīrṇam

4. On the head of the great elephant of the day (the sun), which was enveloped by a sword of pure darkness, the pearl-like multitude of stars was scattered, reddish with the hue of twilight.

Words meanings summery:

• मृष्टध्वान्तासिवलिते (mṛṣṭadhvāntāsivalite) - on the head of the sun-elephant, which is enveloped by a sword of pure darkness (on that which is enveloped by a polished sword of darkness)

• दिननागेन्द्रमस्तके (dinanāgendramastake) - on the head of the sun (personified as a great elephant) (on the head of the great elephant of the day)

• सन्ध्यारागारुणम् (sandhyārāgāruṇam) - reddish with the hue of twilight

• कीर्णम् (kīrṇam) - scattered, spread

• तारानिकरमौक्तिकम् (tārānikaramauktikam) - pearl-like multitude of stars

Words meanings and morphology

मृष्टध्वान्तासिवलिते (mṛṣṭadhvāntāsivalite) - on the head of the sun-elephant, which is enveloped by a sword of pure darkness (on that which is enveloped by a polished sword of darkness)

(adjective)

Locative, neuter, singular of mṛṣṭadhvāntāsivalita

mṛṣṭadhvāntāsivalita - enveloped by a polished sword of darkness

Compound type : bahuvrīhi (mṛṣṭa+dhvānta+asi+valita)

• mṛṣṭa – polished, purified, cleansed, bright, pure
  participle (neuter)
  Past Passive Participle
  Derived from root mṛj (to cleanse, polish)
  Root: mṛj (class 2)
• dhvānta – darkness, gloom
  noun (neuter)
• asi – sword, scimitar
  noun (masculine)
• valita – enclosed, surrounded, covered, entwined
  participle (neuter)
  Past Passive Participle
  Derived from root val (to cover, surround)
  Root: val (class 1)

दिननागेन्द्रमस्तके (dinanāgendramastake) - on the head of the sun (personified as a great elephant) (on the head of the great elephant of the day)

(noun)

Locative, masculine, singular of dinanāgendramastaka

dinanāgendramastaka - head of the great elephant of the day

Compound type : tatpuruṣa (dina+nāga+indra+mastaka)

• dina – day
  noun (masculine)
• nāga – elephant; serpent, cobra
  noun (masculine)
• indra – chief, lord, king, best
  noun (masculine)
• mastaka – head, skull, top
  noun (masculine)

सन्ध्यारागारुणम् (sandhyārāgāruṇam) - reddish with the hue of twilight

(adjective)

neuter, singular of sandhyārāgāruṇa

sandhyārāgāruṇa - reddish due to the color/glow of twilight

Compound type : tatpuruṣa (sandhyā+rāga+aruṇa)

• sandhyā – twilight, evening, junction (of day and night)
  noun (feminine)
  Prefix: sam
  Root: dhī (class 3)
• rāga – color, hue, redness; passion, affection
  noun (masculine)
  Root: rañj (class 1)
• aruṇa – red, reddish, tawny; dawn
  adjective (masculine)

कीर्णम् (kīrṇam) - scattered, spread

(participle)

neuter, singular of kīrṇa

kīrṇa - scattered, spread, sprinkled

Past Passive Participle

Derived from root kṛ (to scatter, throw)

Root: kṛ (class 6)

तारानिकरमौक्तिकम् (tārānikaramauktikam) - pearl-like multitude of stars

(noun)

neuter, singular of tārānikaramauktika

tārānikaramauktika - the pearl-like mass or multitude of stars

Compound type : karmadhāraya (tārā+nikara+mauktika)

• tārā – star, planet
  noun (feminine)
• nikara – multitude, collection, heap, mass
  noun (masculine)
  Prefix: ni
  Root: kṛ (class 6)
• mauktika – pearl, made of pearls
  noun (neuter)