योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-24, verse-30

मेघमार्गमहामेघमहारम्भाकुलं क्वचित् ।
चित्रन्यस्तसमाकारमूककल्पान्तवारिदम् ॥ ३० ॥

meghamārgamahāmeghamahārambhākulaṃ kvacit ,
citranyastasamākāramūkakalpāntavāridam 30

30. meghamārgamahāmeghamahārambhākulam kvacit
citranyastasamākāramūkakalpāntavāridam

30. kvacit meghamārgamahāmeghamahārambhākulam
citranyastasamākāramūkakalpāntavāridam

30. Sometimes, it (the abode) is agitated by the great commotion of massive clouds in the sky; and it possesses silent clouds of the cosmic dissolution (kalpānta) which resemble those depicted in a painting.

Words meanings summery:

• मेघमार्गमहामेघमहारम्भाकुलम् (meghamārgamahāmeghamahārambhākulam) - Agitated by the great commotion of massive clouds in the path of the clouds (sky)

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

• चित्रन्यस्तसमाकारमूककल्पान्तवारिदम् (citranyastasamākāramūkakalpāntavāridam) - Possessing silent clouds of the cosmic dissolution which resemble those depicted in a painting

Words meanings and morphology

मेघमार्गमहामेघमहारम्भाकुलम् (meghamārgamahāmeghamahārambhākulam) - Agitated by the great commotion of massive clouds in the path of the clouds (sky)

(adjective)

Accusative, neuter, singular of meghamārgamahāmeghamahārambhākula

meghamārgamahāmeghamahārambhākula - Agitated by the great commotion of massive clouds in the path of the clouds (sky)

Compound type : bahuvrīhi (meghamārga+mahāmegha+mahārambha+ākula)

• meghamārga – path of clouds, sky
  noun (masculine)
• mahāmegha – great cloud, massive cloud
  noun (masculine)
• mahārambha – great commotion, great disturbance, great undertaking
  noun (masculine)
  Derived from mahā (great) and ārambha (beginning, effort, disturbance).
  Prefix: ā
  Root: rabh (class 1)
• ākula – agitated, confused, filled with, crowded
  adjective (masculine)
  Derived from root kul (to collect, crowd) with prefix ā.
  Prefix: ā
  Root: kul (class 10)

Note: Qualifies the implied noun ('bhavanam').

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

(indeclinable)

चित्रन्यस्तसमाकारमूककल्पान्तवारिदम् (citranyastasamākāramūkakalpāntavāridam) - Possessing silent clouds of the cosmic dissolution which resemble those depicted in a painting

(adjective)

Accusative, neuter, singular of citranyastasamākāramūkakalpāntavārida

citranyastasamākāramūkakalpāntavārida - Possessing silent clouds of the cosmic dissolution which resemble those depicted in a painting

Compound type : bahuvrīhi (citranyasta+samākāra+mūka+kalpāntavārida)

• citranyasta – depicted in a picture, painted
  adjective (masculine)
  Past Passive Participle
  Compound of citra (picture) and nyasta (placed, put). Nyasta is PPP from as with ni.
  Prefix: ni
  Root: as (class 2)
• samākāra – similar form, resembling
  adjective (masculine)
  Derived from sama (similar) and ākāra (form).
• mūka – silent, mute, dumb
  adjective (masculine)
• kalpāntavārida – clouds at the end of a cosmic cycle, deluge clouds
  noun (masculine)
  Compound of kalpānta (end of a kalpa, cosmic cycle) and vārida (cloud, literally 'water-giver').
  Root: dā (class 1)

Note: Qualifies the implied noun ('bhavanam').