योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-115, verse-4

सुमेरावुत्तरे श्रृङ्गे पूर्वं शशिकलाधरः ।
अतिष्ठदग्निसंकाशे समग्रपरिवारवान् ॥ ४ ॥

sumerāvuttare śrṛṅge pūrvaṃ śaśikalādharaḥ ,
atiṣṭhadagnisaṃkāśe samagraparivāravān 4

4. sumerau uttare śṛṅge pūrvam śaśikalādharaḥ
atiṣṭhat agnisaṃkāśe samagraparivāravān

4. pūrvam śaśikalādharaḥ sumerau uttare śṛṅge
agnisaṃkāśe samagraparivāravān atiṣṭhat

4. Formerly, the one who bears the moon's digit (Śiva) resided on the northern peak of Mount Sumeru, appearing like fire, accompanied by his entire retinue.

Words meanings summery:

• सुमेरौ (sumerau) - on Mount Sumeru (a mythical mountain) (on Sumeru)

• उत्तरे (uttare) - northern, in the north

• शृङ्गे (śṛṅge) - on the peak (of Mount Sumeru) (on the peak, on the horn)

• पूर्वम् (pūrvam) - formerly, previously

• शशिकलाधरः (śaśikalādharaḥ) - the one who bears the moon's digit (Śiva)

• अतिष्ठत् (atiṣṭhat) - resided, stood

• अग्निसंकाशे (agnisaṁkāśe) - appearing like fire (in a fiery appearance, like fire)

• समग्रपरिवारवान् (samagraparivāravān) - accompanied by his entire retinue (endowed with his entire retinue, having all his attendants)

Words meanings and morphology

सुमेरौ (sumerau) - on Mount Sumeru (a mythical mountain) (on Sumeru)

(proper noun)

Locative, masculine, singular of sumeru

sumeru - Sumeru, a mythical mountain, the central world-mountain.

उत्तरे (uttare) - northern, in the north

(adjective)

Locative, neuter, singular of uttara

uttara - northern, upper, later, higher.

Note: Agrees with śṛṅge.

शृङ्गे (śṛṅge) - on the peak (of Mount Sumeru) (on the peak, on the horn)

(noun)

Locative, neuter, singular of śṛṅga

śṛṅga - horn, peak, summit, top.

पूर्वम् (pūrvam) - formerly, previously

(indeclinable)

शशिकलाधरः (śaśikalādharaḥ) - the one who bears the moon's digit (Śiva)

(noun)

Nominative, masculine, singular of śaśikalādhara

śaśikalādhara - one who bears the moon's digit; an epithet of Śiva.

Compound type : bahuvrīhi (śaśi+kalā+dhara)

• śaśi – moon.
  noun (masculine)
• kalā – a digit of the moon, a small part.
  noun (feminine)
• dhara – bearing, holding.
  adjective (masculine)

अतिष्ठत् (atiṣṭhat) - resided, stood

(verb)

3rd person , singular, active, imperfect (laṅ) of sthā

Imperfect tense form (laṅ lakāra).

Root: sthā (class 1)

अग्निसंकाशे (agnisaṁkāśe) - appearing like fire (in a fiery appearance, like fire)

(adjective)

Locative, neuter, singular of agnisaṃkāśa

agnisaṁkāśa - resembling fire, fiery in appearance, splendid like fire.

Compound type : karmadhāraya (agni+saṃkāśa)

• agni – fire.
  noun (masculine)
• saṃkāśa – resemblance, appearance, splendor.
  noun (masculine)

Note: Used adverbially or in locative absolute, referring to the state/appearance.

समग्रपरिवारवान् (samagraparivāravān) - accompanied by his entire retinue (endowed with his entire retinue, having all his attendants)

(adjective)

Nominative, masculine, singular of samagraparivāravat

samagraparivāravat - having his entire retinue, accompanied by all his attendants.

Suffix -vat indicates possession.

Compound type : bahuvrīhi (samagra+parivāra+vat)

• samagra – entire, complete, whole.
  adjective (masculine)
• parivāra – retinue, attendants, family.
  noun (masculine)
• vat – having, possessing (suffix forming adjectives).
  suffix