योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-26, verse-55

लोकसप्तकविभ्रष्टकुड्यखण्डचिताम्बरम् ।
अनारतरसन्मत्तकल्पाभ्रदृढदुन्दुभि ॥ ५५ ॥

lokasaptakavibhraṣṭakuḍyakhaṇḍacitāmbaram ,
anāratarasanmattakalpābhradṛḍhadundubhi 55

55. loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambaram
anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi

55. loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambaram
anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi

55. Characterized by a sky covered with scattered fragments of walls from the seven worlds, and by firm drums continually roaring like intoxicated doomsday clouds.

Words meanings summery:

• लोक-सप्तक-विभ्रष्ट-कुड्य-खण्ड-चित-अम्बरम् (loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambaram) - whose sky is covered with scattered fragments of walls from the seven worlds ((that) whose sky is covered with scattered fragments of walls from the seven worlds)

• अनारत-रसत्-मत्त-कल्प-अभ्रा-दृढ-दुन्दुभि (anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi) - firm drums continually roaring like intoxicated doomsday clouds (firm drums (sounding) like continually roaring, intoxicated doomsday clouds)

Words meanings and morphology

लोक-सप्तक-विभ्रष्ट-कुड्य-खण्ड-चित-अम्बरम् (loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambaram) - whose sky is covered with scattered fragments of walls from the seven worlds ((that) whose sky is covered with scattered fragments of walls from the seven worlds)

(noun)

Accusative, neuter, singular of loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambara

loka-saptaka-vibhraṣṭa-kuḍya-khaṇḍa-cita-ambara - sky covered with fragments of walls fallen from the seven worlds

Compound type : bahuvrīhi (loka-saptaka+vibhraṣṭa+kuḍya+khaṇḍa+cita+ambara)

• loka-saptaka – the seven worlds
  noun (neuter)
• vibhraṣṭa – fallen, scattered, lost
  adjective
  Past Passive Participle
  Derived from root bhraṃś (to fall, stray) with prefix vi and kta suffix.
  Prefix: vi
  Root: bhraṃś (class 1)
• kuḍya – wall, mud-wall
  noun (neuter)
• khaṇḍa – piece, fragment, part
  noun (neuter)
  Root: khaṇḍ (class 10)
• cita – covered, filled, piled up
  adjective
  Past Passive Participle
  Derived from root ci (to gather, pile) with kta suffix.
  Root: ci (class 5)
• ambara – sky, atmosphere, garment
  noun (neuter)
  Root: amb

Note: This entire compound describes a characteristic of the entity.

अनारत-रसत्-मत्त-कल्प-अभ्रा-दृढ-दुन्दुभि (anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi) - firm drums continually roaring like intoxicated doomsday clouds (firm drums (sounding) like continually roaring, intoxicated doomsday clouds)

(noun)

Nominative, masculine/feminine, singular of anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi

anārata-rasat-matta-kalpa-abhrā-dṛḍha-dundubhi - firm drums that roar incessantly like furious doomsday clouds

Compound type : karmadhāraya (anārata+rasat+matta+kalpa+abhrā+dṛḍha+dundubhi)

• anārata – incessant, continuous, without interruption
  adjective
  From na + ārata (stopped).
  Prefixes: a+ā
  Root: ṛ (class 1)
• rasat – roaring, sounding, tasting
  adjective
  Present Active Participle
  Derived from root ras (to roar, taste) with śatṛ suffix.
  Root: ras (class 1)
• matta – intoxicated, furious, excited
  adjective
  Past Passive Participle
  Derived from root mad (to be intoxicated) with kta suffix.
  Root: mad (class 4)
• kalpa – aeon, cosmic age, end of a world period, doomsday
  noun (masculine)
  Root: kḷp (class 1)
• abhra – cloud, sky
  noun (neuter)
  `abhrā` is masculine nominative plural, or feminine nominative singular
  Root: abhr
• dṛḍha – firm, strong, hard
  adjective
  Past Passive Participle
  Derived from root dṛh (to fix, make firm) with kta suffix.
  Root: dṛh (class 1)
• dundubhi – drum, war-drum
  noun (masculine/feminine)

Note: This entire compound functions as an elaborate descriptor, with dundubhi as the final noun.