योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-77, verse-15

विशीर्णवसुधापीठखण्डखण्डैर्गलत्तटैः ।
उह्यमानैर्लुठच्छैलपतनैः संकटार्णवम् ॥ १५ ॥

viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍairgalattaṭaiḥ ,
uhyamānairluṭhacchailapatanaiḥ saṃkaṭārṇavam 15

15. viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍaiḥ galattaṭaiḥ
uhyamānaiḥ luṭhacchailapatanaiḥ saṅkaṭārṇavam

15. viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍaiḥ galattaṭaiḥ
uhyamānaiḥ luṭhacchailapatanaiḥ saṅkaṭārṇavam

15. A perilous ocean (saṅkaṭārṇava), continuously carrying along numerous fragments of the disintegrated surface of the earth and collapsing banks, accompanied by the tumbling falls of mountains.

Words meanings summery:

• विशीर्णवसुधापीठखण्डखण्डैः (viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍaiḥ) - by pieces/fragments of the disintegrated surface of the earth

• गलत्तटैः (galattaṭaiḥ) - by falling banks or shores

• उह्यमानैः (uhyamānaiḥ) - by those being carried along

• लुठच्छैलपतनैः (luṭhacchailapatanaiḥ) - by the falls/collapses of rolling mountains

• सङ्कटार्णवम् (saṅkaṭārṇavam) - a perilous ocean, dangerous sea

Words meanings and morphology

विशीर्णवसुधापीठखण्डखण्डैः (viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍaiḥ) - by pieces/fragments of the disintegrated surface of the earth

(noun)

Instrumental, neuter, plural of viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍa

viśīrṇavasudhāpīṭhakhaṇḍakhaṇḍa - fragments of the disintegrated surface of the earth

Compound type : tatpurusha (viśīrṇa+vasudhā+pīṭha+khaṇḍa+khaṇḍa)

• viśīrṇa – disintegrated, fallen apart, scattered
  adjective (neuter)
  Past Passive Participle
  Derived from root śṝ (to tear, crush) with prefix vi (apart).
  Prefix: vi
  Root: śṝ (class 9)
• vasudhā – the earth
  noun (feminine)
• pīṭha – seat, base, surface, pedestal
  noun (neuter)
• khaṇḍa – piece, fragment, part
  noun (masculine)
• khaṇḍa – piece, fragment, part
  noun (masculine)

गलत्तटैः (galattaṭaiḥ) - by falling banks or shores

(noun)

Instrumental, masculine, plural of galattaṭa

galattaṭa - falling banks or shores

Compound type : tatpurusha (galat+taṭa)

• galat – falling, flowing, dripping
  adjective (masculine)
  Present Active Participle
  Derived from root gal (to drop, fall).
  Root: gal (class 1)
• taṭa – bank, shore, slope, side
  noun (masculine)

उह्यमानैः (uhyamānaiḥ) - by those being carried along

(adjective)

Instrumental, masculine, plural of uhyamāna

uhyamāna - being carried, being borne, flowing

Present Passive Participle

Derived from root vah (to carry) in passive voice.

Root: vah (class 1)

लुठच्छैलपतनैः (luṭhacchailapatanaiḥ) - by the falls/collapses of rolling mountains

(noun)

Instrumental, neuter, plural of luṭhacchailapatana

luṭhacchailapatana - falls of rolling mountains

Compound type : tatpurusha (luṭhat+śaila+patana)

• luṭhat – rolling, tumbling, falling
  adjective (neuter)
  Present Active Participle
  Derived from root luṭh (to roll).
  Root: luṭh (class 1)
• śaila – mountain, rock
  noun (masculine)
• patana – falling, descent, collapse
  noun (neuter)

सङ्कटार्णवम् (saṅkaṭārṇavam) - a perilous ocean, dangerous sea

(noun)

Nominative, neuter, singular of saṅkaṭārṇava

saṅkaṭārṇava - perilous ocean, dangerous sea

Compound type : tatpurusha (saṅkaṭa+arṇava)

• saṅkaṭa – dangerous, difficult, perilous, constricted
  adjective (neuter)
• arṇava – ocean, sea
  noun (masculine)