योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-114, verse-8

प्रोतोर्मिमकरग्रासैर्दृषद्दन्तैरागुहामुखैः ।
ऋक्षवानृक्षवद्भूभृद्धत्ते घुरघुरारवम् ॥ ८ ॥

protormimakaragrāsairdṛṣaddantairāguhāmukhaiḥ ,
ṛkṣavānṛkṣavadbhūbhṛddhatte ghuraghurāravam 8

8. protaūrmimakaragrāsaiḥ dṛṣaddantaiḥ āguhāmukhaiḥ
ṛkṣavān ṛkṣavat bhūbhṛt dhatte ghurghurāravam

8. ṛkṣavān bhūbhṛt protaūrmimakaragrāsaiḥ dṛṣaddantaiḥ
āguhāmukhaiḥ ṛkṣavat ghurghurāravam dhatte

8. The Rkṣavat mountain, like a bear, emits a growling sound (ghurghurārava) with its cave-like mouths, its rock-like teeth, and its gulps of entangled waves and crocodiles.

Words meanings summery:

• प्रोतऊर्मिमकरग्रासैः (protaūrmimakaragrāsaiḥ) - with gulps of interwoven waves and crocodiles

• दृषद्दन्तैः (dṛṣaddantaiḥ) - with rock-like teeth, with stony teeth

• आगुहामुखैः (āguhāmukhaiḥ) - with cave-like mouths, with mouths extending up to caves

• ऋक्षवान् (ṛkṣavān) - the Ṛkṣavat mountain (the Ṛkṣavat mountain (proper noun), having bears)

• ऋक्षवत् (ṛkṣavat) - like a bear

• भूभृत् (bhūbhṛt) - the mountain (the mountain, the king (earth-bearer))

• धत्ते (dhatte) - it emits (a sound) (it holds, it bears, it makes, it emits)

• घुर्घुरारवम् (ghurghurāravam) - a growling sound, a rumbling sound

Words meanings and morphology

प्रोतऊर्मिमकरग्रासैः (protaūrmimakaragrāsaiḥ) - with gulps of interwoven waves and crocodiles

(adjective)

Instrumental, masculine, plural of protaūrmimakaragrāsa

protaūrmimakaragrāsa - (that which has) gulps of interwoven waves and crocodiles

Bahuvrīhi compound

Compound type : bahuvrīhi (prota+ūrmi+makara+grāsa)

• prota – interwoven, strung, swallowed
  adjective
  Past Passive Participle
  derived from root ve (to weave) with prefix pra
  Prefix: pra
  Root: ve (class 2)
• ūrmi – wave, billow
  noun (masculine)
  Root: ūrm
• makara – crocodile, sea-monster
  noun (masculine)
  Root: makar
• grāsa – mouthful, gulp, bite
  noun (masculine)
  Root: gras (class 1)

Note: Agrees with dṛṣaddantaiḥ and āguhāmukhaiḥ, describing means/manner.

दृषद्दन्तैः (dṛṣaddantaiḥ) - with rock-like teeth, with stony teeth

(adjective)

Instrumental, masculine, plural of dṛṣaddanta

dṛṣaddanta - having teeth like rocks

Bahuvrīhi compound

Compound type : bahuvrīhi (dṛṣad+danta)

• dṛṣad – stone, rock
  noun (feminine)
  Root: dṛṣ
• danta – tooth, tusk
  noun (masculine)
  Root: dad

Note: Agrees with protaūrmimakaragrāsaiḥ and āguhāmukhaiḥ

आगुहामुखैः (āguhāmukhaiḥ) - with cave-like mouths, with mouths extending up to caves

(adjective)

Instrumental, masculine, plural of āguhāmukha

āguhāmukha - having mouths like caves

Bahuvrīhi compound

Compound type : bahuvrīhi (guhā+mukha)

• guhā – cave, cavern
  noun (feminine)
  Root: guh (class 1)
• mukha – mouth, face, opening
  noun (neuter)
  Root: mukh

Note: Agrees with protaūrmimakaragrāsaiḥ and dṛṣaddantaiḥ

ऋक्षवान् (ṛkṣavān) - the Ṛkṣavat mountain (the Ṛkṣavat mountain (proper noun), having bears)

(proper noun)

Nominative, masculine, singular of ṛkṣavat

ṛkṣavat - having bears; name of a mountain range (Ṛkṣavat)

from ṛkṣa + matup suffix

ऋक्षवत् (ṛkṣavat) - like a bear

(indeclinable)

from ṛkṣa + vat-suffix (similarity)

भूभृत् (bhūbhṛt) - the mountain (the mountain, the king (earth-bearer))

(noun)

Nominative, masculine, singular of bhūbhṛt

bhūbhṛt - earth-bearer; mountain, king

derived from bhū + bhṛ

Compound type : tatpuruṣa (bhū+bhṛt)

• bhū – earth, land
  noun (feminine)
  Root: bhū (class 1)
• bhṛt – bearing, carrying, supporting
  adjective
  Kṛt suffix (KvIP)
  from root bhṛ
  Root: bhṛ (class 3)

धत्ते (dhatte) - it emits (a sound) (it holds, it bears, it makes, it emits)

(verb)

3rd person , singular, middle, present (laṭ) of dhā

present tense

Ātmanepada, third person singular, present indicative

Root: dhā (class 3)

घुर्घुरारवम् (ghurghurāravam) - a growling sound, a rumbling sound

(noun)

Accusative, masculine, singular of ghurghurārava

ghurghurārava - a growling, rumbling, or roaring sound

Compound type : tatpuruṣa (ghurghura+rava)

• ghurghura – growl, rumble (onomatopoeia)
  noun (masculine)
• rava – sound, roar, cry
  noun (masculine)
  Root: ru (class 2)

Note: object of dhatte