योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-140, verse-21

क्वचिदाकण्ठनिर्मग्नक्वणद्विद्याधरीगणः ।
क्वचित्स्वप्नमृतेभाभयाम्योग्रमहिषावृतः ॥ २१ ॥

kvacidākaṇṭhanirmagnakvaṇadvidyādharīgaṇaḥ ,
kvacitsvapnamṛtebhābhayāmyogramahiṣāvṛtaḥ 21

21. kvacit ākaṇṭhanirmagnakvaṇadvidyādharīgaṇaḥ
kvacit svapnamṛtebhābhayāmyogramahiṣāvṛtaḥ

21. kvacit ākaṇṭhanirmagnakvaṇadvidyādharīgaṇaḥ
kvacit svapnamṛtebhābhayāmyogramahiṣāvṛtaḥ

21. Somewhere, there is a host of female celestial beings (vidyādharī) submerged up to their necks and making sounds. Elsewhere, it is surrounded by Yama's fierce buffaloes, which resemble elephants dead in a dream.

Words meanings summery:

• क्वचित् (kvacit) - sometimes, somewhere, in some place, on some occasion

• आकण्ठनिर्मग्नक्वणद्विद्याधरीगणः (ākaṇṭhanirmagnakvaṇadvidyādharīgaṇaḥ) - a host of female celestial beings (vidyādharī) submerged up to their necks and making sounds

• क्वचित् (kvacit) - sometimes, somewhere, in some place, on some occasion

• स्वप्नमृतेभाभयाम्योग्रमहिषावृतः (svapnamṛtebhābhayāmyogramahiṣāvṛtaḥ) - one surrounded by Yama's fierce buffaloes resembling elephants dead in a dream

Words meanings and morphology

क्वचित् (kvacit) - sometimes, somewhere, in some place, on some occasion

(indeclinable)

आकण्ठनिर्मग्नक्वणद्विद्याधरीगणः (ākaṇṭhanirmagnakvaṇadvidyādharīgaṇaḥ) - a host of female celestial beings (vidyādharī) submerged up to their necks and making sounds

(compound noun)

Compound type : bahuvrīhi (ākaṇṭha+nirmagna+kvaṇat+vidyādharī+gaṇa)

• ākaṇṭha – up to the neck
  indeclinable
• nirmagna – immersed, submerged
  adjective (masculine)
  Past Passive Participle
  From ni-√maj (to sink)
  Prefix: ni
  Root: maj (class 6)
• kvaṇat – sounding, tinkling, humming, ringing
  adjective (masculine)
  Present Active Participle
  From √kvaṇ (to sound)
  Root: kvaṇ (class 1)
• vidyādharī – female celestial being, fairy
  noun (feminine)
• gaṇa – multitude, host, group
  noun (masculine)

Note: This compound describes a state of the scene.

क्वचित् (kvacit) - sometimes, somewhere, in some place, on some occasion

(indeclinable)

स्वप्नमृतेभाभयाम्योग्रमहिषावृतः (svapnamṛtebhābhayāmyogramahiṣāvṛtaḥ) - one surrounded by Yama's fierce buffaloes resembling elephants dead in a dream

(compound noun)

Compound type : bahuvrīhi (svapna+mṛta+ibha+ābha+yama+ugra+mahiṣa+āvṛta)

• svapna – dream, sleep
  noun (masculine)
• mṛta – dead, deceased
  adjective (masculine)
  Past Passive Participle
  From √mṛ (to die)
  Root: mṛ (class 1)
• ibha – elephant
  noun (masculine)
• ābha – likeness, resemblance, having the appearance of
  adjective (masculine)
  Suffix forming adjectives
• yama – Yama, god of death
  proper noun (masculine)
• ugra – fierce, terrible, mighty
  adjective (masculine)
• mahiṣa – buffalo
  noun (masculine)
• āvṛta – surrounded, covered, enveloped
  adjective (masculine)
  Past Passive Participle
  From ā-√vṛ (to cover)
  Prefix: ā
  Root: vṛ (class 5)

Note: This compound describes a state of the scene.