योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-48, verse-85

वायव्यमस्त्रमसृजत्पूरिताकाशकोटरम् ।
कल्पान्तनृत्तसंमत्तरटद्भैरवभीषणम् ॥ ८५ ॥

vāyavyamastramasṛjatpūritākāśakoṭaram ,
kalpāntanṛttasaṃmattaraṭadbhairavabhīṣaṇam 85

85. vāyavyam astram asṛjat pūritākāśakoṭaram
kalpāntanṛttasaṃmattaraṭadbhairavabhīṣaṇam

85. vāyavyam astram asṛjat pūritākāśakoṭaram
kalpāntanṛttasaṃmattaraṭadbhairavabhīṣaṇam

85. He unleashed the aerial weapon (vāyavya astra), which filled the vast hollow of the sky. It was as terrifying as the frenzied, roaring dance of Bhairava at the end of a cosmic cycle (kalpānta).

Words meanings summery:

• वायव्यम् (vāyavyam) - aerial (weapon) (aerial, pertaining to wind, relating to the god Vayu)

• अस्त्रम् (astram) - weapon, missile, projectile

• असृजत् (asṛjat) - created, released, emitted

• पूरिताकाशकोटरम् (pūritākāśakoṭaram) - filling the vast hollow of the sky (referring to the weapon) (filling the hollow of the sky, having the cavity of space filled)

• कल्पान्तनृत्तसंमत्तरटद्भैरवभीषणम् (kalpāntanṛttasaṁmattaraṭadbhairavabhīṣaṇam) - as terrifying as the frenzied, roaring dance of Bhairava at the end of a cosmic cycle (kalpānta) (terrifying like the frenzied, roaring dance of Bhairava at the end of a cosmic cycle)

Words meanings and morphology

वायव्यम् (vāyavyam) - aerial (weapon) (aerial, pertaining to wind, relating to the god Vayu)

(adjective)

Accusative, neuter, singular of vāyavya

vāyavya - aerial, wind-related, sacred to Vayu

Derived from 'vāyu' (wind) with suffix '-ya' (belonging to, related to)

अस्त्रम् (astram) - weapon, missile, projectile

(noun)

Accusative, neuter, singular of astra

astra - weapon, missile, projectile

असृजत् (asṛjat) - created, released, emitted

(verb)

3rd person , singular, active, past imperfect (laṅ) of sṛj

Root: sṛj (class 6)

पूरिताकाशकोटरम् (pūritākāśakoṭaram) - filling the vast hollow of the sky (referring to the weapon) (filling the hollow of the sky, having the cavity of space filled)

(adjective)

Accusative, neuter, singular of pūritākāśakoṭara

pūritākāśakoṭara - filling the hollow of the sky, having the cavity of space filled

Compound type : bahuvrīhi (pūrita+ākāśa+koṭara)

• pūrita – filled, complete
  adjective (neuter)
  Past Passive Participle
  Derived from root 'pūr' (to fill)
  Root: pūr (class 10)
• ākāśa – sky, space, ether
  noun (masculine)
• koṭara – hollow, cavity, socket, cavern
  noun (neuter)

कल्पान्तनृत्तसंमत्तरटद्भैरवभीषणम् (kalpāntanṛttasaṁmattaraṭadbhairavabhīṣaṇam) - as terrifying as the frenzied, roaring dance of Bhairava at the end of a cosmic cycle (kalpānta) (terrifying like the frenzied, roaring dance of Bhairava at the end of a cosmic cycle)

(adjective)

Accusative, neuter, singular of kalpāntanṛttasaṃmattaraṭadbhairavabhīṣaṇa

kalpāntanṛttasaṁmattaraṭadbhairavabhīṣaṇa - terrifying like the frenzied, roaring dance of Bhairava at the end of a cosmic cycle

Compound type : bahuvrīhi (kalpānta+nṛtta+saṃmatta+raṭat+bhairava+bhīṣaṇa)

• kalpānta – end of a kalpa (cosmic cycle)
  noun (masculine)
  Compound: kalpa (cosmic age) + anta (end)
• nṛtta – dance
  noun (neuter)
  Past Passive Participle used as noun
  Derived from root 'nṛt' (to dance)
  Root: nṛt (class 4)
• saṃmatta – maddened, frenzied, intoxicated
  adjective (masculine)
  Past Passive Participle
  Derived from root 'mad' (to be intoxicated) with prefix 'sam'
  Prefix: sam
  Root: mad (class 4)
• raṭat – roaring, screaming, making noise
  adjective (masculine)
  Present Active Participle
  Derived from root 'raṭ' (to roar)
  Root: raṭ (class 1)
• bhairava – terrifying, frightful; a terrifying form of Shiva
  noun (masculine)
• bhīṣaṇa – frightful, terrible, dreadful
  adjective (neuter)
  Derived from root 'bhīṣ' (to frighten)
  Root: bhīṣ (class 10)