योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-39, verse-14

श्वकाकयक्षवेतालतालकोलाहलोल्बणम् ।
गमागमेन भूतानां समुड्डीनवनोपमम् ॥ १४ ॥

śvakākayakṣavetālatālakolāhalolbaṇam ,
gamāgamena bhūtānāṃ samuḍḍīnavanopamam 14

14. śvakākayakṣavetālatālakolāhalolbaṇam
gamāgamena bhūtānām samuḍḍīnavanopamam

14. śvakākayakṣavetālatālakolāhalolbaṇam
gamāgamena bhūtānām samuḍḍīnavanopamam

14. (The battlefield was) overwhelming with the loud, rhythmic clamor of dogs, crows, yakṣas, and vetālas (ghosts/demons). Due to the constant coming and going of various beings (bhūtas), it resembled a forest where birds have suddenly flown up in commotion.

Words meanings summery:

• श्वकाकयक्षवेतालतालकोलाहलोल्बणम् (śvakākayakṣavetālatālakolāhalolbaṇam) - overwhelming with the loud, rhythmic clamor of dogs, crows, yakṣas, and vetālas (ghosts/demons)

• गमागमेन (gamāgamena) - by the coming and going, by the movements

• भूतानाम् (bhūtānām) - of beings, of creatures, of ghosts

• समुड्डीनवनोपमम् (samuḍḍīnavanopamam) - resembling a forest where (birds) have flown up (in commotion)

Words meanings and morphology

श्वकाकयक्षवेतालतालकोलाहलोल्बणम् (śvakākayakṣavetālatālakolāhalolbaṇam) - overwhelming with the loud, rhythmic clamor of dogs, crows, yakṣas, and vetālas (ghosts/demons)

(adjective)

Nominative, neuter, singular of śvakākayakṣavetālatālakolāhalolbaṇa

śvakākayakṣavetālatālakolāhalolbaṇa - overwhelming with the loud, rhythmic clamor of dogs, crows, yakṣas, and vetālas (ghosts/demons)

Compound adjective describing the battlefield.

Compound type : bahuvrīhi (śvan+kāka+yakṣa+vetāla+tāla+kolāhala+ulbaṇa)

• śvan – dog
  noun (masculine)
• kāka – crow
  noun (masculine)
• yakṣa – a class of demigods, often guardians of wealth
  noun (masculine)
• vetāla – a ghost, vampire, demon
  noun (masculine)
• tāla – rhythmic beating, clapping, musical time
  noun (masculine)
• kolāhala – clamor, uproar, loud noise
  noun (masculine)
• ulbaṇa – excessive, abundant, prominent
  adjective
  Prefix: ut

Note: Modifies the implied 'raṇāṅgaṇam'.

गमागमेन (gamāgamena) - by the coming and going, by the movements

(noun)

Instrumental, masculine, singular of gamāgama

gamāgama - coming and going, constant movement

Dvanda-like compound of 'gama' (going) and 'āgama' (coming).

Compound type : tatpurusha (gama+āgama)

• gama – going, movement
  noun (masculine)
  From root 'gam'.
  Root: gam (class 1)
• āgama – coming, arrival
  noun (masculine)
  From 'ā-gam'.
  Prefix: ā
  Root: gam (class 1)

Note: Denotes the cause or means.

भूतानाम् (bhūtānām) - of beings, of creatures, of ghosts

(noun)

Genitive, neuter, plural of bhūta

bhūta - being, creature, ghost, element

Past Passive Participle

From root 'bhū' (to be). Can also be an adjective.

Root: bhū (class 1)

Note: Possessive or specifying.

समुड्डीनवनोपमम् (samuḍḍīnavanopamam) - resembling a forest where (birds) have flown up (in commotion)

(adjective)

Nominative, neuter, singular of samuḍḍīnavanopama

samuḍḍīnavanopama - resembling a forest from which birds have flown up in commotion

Compound adjective modifying the implied 'battlefield'.

Compound type : bahuvrīhi (samudḍīna+vana+upama)

• samudḍīna – flying up together, rising, scattering
  adjective
  Past Passive Participle
  From 'sam-ut-ḍī' (to fly up).
  Prefixes: sam+ud
  Root: ḍī (class 4)
• vana – forest, wood
  noun (neuter)
• upama – likeness, similarity, comparable
  adjective
  Prefix: upa

Note: Modifies the implied 'raṇāṅgaṇam'.