योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-24, verse-51

मयूरहेमचूडादिपक्षिभिः क्वचिदावृतम् ।
विद्याधरीणां देवीनां वाहनैर्विहितास्पदैः ॥ ५१ ॥

mayūrahemacūḍādipakṣibhiḥ kvacidāvṛtam ,
vidyādharīṇāṃ devīnāṃ vāhanairvihitāspadaiḥ 51

51. mayūrahemacūḍādipakṣibhiḥ kvacit āvṛtam
vidyādharīṇām devīnām vāhanaiḥ vihitāspadaiḥ

51. kvacit āvṛtam mayūrahemacūḍādipakṣibhiḥ
vidyādharīṇām devīnām vāhanaiḥ vihitāspadaiḥ

51. At times, it is covered by peacocks, golden-crested and other such birds. It is also covered by the vehicles of the Vidyādharīs and goddesses, which have established their abodes there.

Words meanings summery:

• मयूरहेमचूडादिपक्षिभिः (mayūrahemacūḍādipakṣibhiḥ) - by peacocks, golden-crested and other such birds

• क्वचित् (kvacit) - at times (sometimes, at times)

• आवृतम् (āvṛtam) - is covered (covered, surrounded, encompassed)

• विद्याधरीणाम् (vidyādharīṇām) - of the Vidyādharīs (of the Vidyādharīs (female celestial beings))

• देवीनाम् (devīnām) - and goddesses (of the goddesses)

• वाहनैः (vāhanaiḥ) - by the vehicles (by the vehicles, by the mounts)

• विहितास्पदैः (vihitāspadaiḥ) - which have established their abodes there (by those which have made their abode, by those whose resting places are established)

Words meanings and morphology

मयूरहेमचूडादिपक्षिभिः (mayūrahemacūḍādipakṣibhiḥ) - by peacocks, golden-crested and other such birds

(noun)

Instrumental, masculine, plural of mayūrahemacūḍādipakṣin

mayūrahemacūḍādipakṣin - peacock, golden-crested and other such birds

Compound type : dvandva-tatpuruṣa (mayūra+hema+cūḍā+ādi+pakṣin)

• mayūra – peacock
  noun (masculine)
• hema – gold, golden
  noun (neuter)
• cūḍā – crest, top-knot, tuft
  noun (feminine)
• ādi – beginning, and so on, et cetera
  indeclinable
• pakṣin – bird, winged creature
  noun (masculine)

क्वचित् (kvacit) - at times (sometimes, at times)

(indeclinable)

आवृतम् (āvṛtam) - is covered (covered, surrounded, encompassed)

(adjective)

Nominative, neuter, singular of āvṛta

āvṛta - covered, surrounded, enveloped, concealed

Past Passive Participle

Derived from root vṛ (to cover, enclose) with upasarga ā.

Prefix: ā

Root: vṛ (class 5)

Note: Participle modifying an implied noun like 'kṣetram' (field).

विद्याधरीणाम् (vidyādharīṇām) - of the Vidyādharīs (of the Vidyādharīs (female celestial beings))

(noun)

Genitive, feminine, plural of vidyādharī

vidyādharī - female Vidyādhara, a kind of celestial female being

देवीनाम् (devīnām) - and goddesses (of the goddesses)

(noun)

Genitive, feminine, plural of devī

devī - goddess, divine female

वाहनैः (vāhanaiḥ) - by the vehicles (by the vehicles, by the mounts)

(noun)

Instrumental, neuter, plural of vāhana

vāhana - vehicle, mount, conveyance

Derived from root vah (to carry).

Root: vah (class 1)

विहितास्पदैः (vihitāspadaiḥ) - which have established their abodes there (by those which have made their abode, by those whose resting places are established)

(adjective)

Instrumental, neuter, plural of vihitāspada

vihitāspada - having an abode established, having a place fixed

Compound type : bahuvrīhi (vihita+āspada)

• vihita – made, arranged, established, assigned
  adjective
  Past Passive Participle
  Derived from root dhā (to place, make) with upasarga vi.
  Prefix: vi
  Root: dhā (class 3)
• āspada – abode, dwelling place, seat, object
  noun (neuter)

Note: Adjective modifying 'vāhanaiḥ'.