योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-24, verse-46

वैमानिकनिपातेन वहिलेखाङ्कितं क्वचित् ।
क्वचित्केतुशतोत्पातमिथःसंघट्टपट्टितम् ॥ ४६ ॥

vaimānikanipātena vahilekhāṅkitaṃ kvacit ,
kvacitketuśatotpātamithaḥsaṃghaṭṭapaṭṭitam 46

46. vaimānika-nipātena vahni-lekhā-aṅkitam kvacit
kvacit ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭitam

46. kvacit vaimānika-nipātena vahni-lekhā-aṅkitam,
kvacit ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭitam.

46. Elsewhere, it is marked by streaks of fire from the crashing of aerial vehicles. And sometimes, it is shattered by the mutual collision of hundreds of comet-like phenomena.

Words meanings summery:

• वैमानिक-निपातेन (vaimānika-nipātena) - by the crashing of celestial vehicles (by the crashing of celestial vehicles/travelers)

• वह्नि-लेखा-अङ्कितम् (vahni-lekhā-aṅkitam) - marked by streaks of fire

• क्वचित् (kvacit) - elsewhere (sometimes, somewhere, in some places)

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

• केतु-शत-उत्पात-मिथः-सङ्घट्ट-पट्टितम् (ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭitam) - shattered by the mutual collision of hundreds of comet-like phenomena (shattered by the mutual collision of hundreds of comet-like portents)

Words meanings and morphology

वैमानिक-निपातेन (vaimānika-nipātena) - by the crashing of celestial vehicles (by the crashing of celestial vehicles/travelers)

(noun)

Instrumental, masculine, singular of vaimānika-nipāta

vaimānika-nipāta - fall of celestial vehicles/travelers

Compound type : tatpuruṣa (vaimānika+nipāta)

• vaimānika – relating to a vimana (celestial car), a celestial traveler, aviator
  adjective/noun (masculine)
  from vimāna
• nipāta – fall, descent, crash
  noun (masculine)
  from ni-pat
  Prefix: ni
  Root: pat (class 1)

वह्नि-लेखा-अङ्कितम् (vahni-lekhā-aṅkitam) - marked by streaks of fire

(adjective)

Accusative, neuter, singular of vahni-lekhā-aṅkita

vahni-lekhā-aṅkita - marked by streaks of fire

Compound type : tatpuruṣa (vahni-lekhā+aṅkita)

• vahni – fire, Agni
  noun (masculine)
  Root: vah (class 1)
• lekhā – line, streak, mark
  noun (feminine)
• aṅkita – marked, streaked, impressed
  adjective
  Past Passive Participle
  from root aṅk
  Root: aṅk (class 1)

Note: modifies an implied 'place' or 'region'

क्वचित् (kvacit) - elsewhere (sometimes, somewhere, in some places)

(indeclinable)

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

(indeclinable)

केतु-शत-उत्पात-मिथः-सङ्घट्ट-पट्टितम् (ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭitam) - shattered by the mutual collision of hundreds of comet-like phenomena (shattered by the mutual collision of hundreds of comet-like portents)

(adjective)

Accusative, neuter, singular of ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭita

ketu-śata-utpāta-mithaḥ-saṅghaṭṭa-paṭṭita - shattered by the mutual collision of hundreds of comet-like portents

Compound type : tatpuruṣa (ketu-śata-utpāta+mithaḥ-saṅghaṭṭa+paṭṭita)

• ketu – comet, banner, flag, portent
  noun (masculine)
• śata – hundred
  noun (neuter)
• utpāta – phenomenon, calamity, portent, sudden occurrence
  noun (masculine)
  from ut-pat
  Prefix: ut
  Root: pat (class 1)
• mithaḥ – mutually, reciprocally, together
  indeclinable
• saṅghaṭṭa – collision, clash, impact
  noun (masculine)
  from sam-ghaṭṭ
  Prefix: sam
  Root: ghaṭṭ (class 10)
• paṭṭita – split, torn, shattered, damaged
  adjective
  Past Passive Participle
  from root paṭṭ
  Root: paṭṭ (class 10)

Note: modifies an implied 'place' or 'region'