योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-18, verse-46

संसाराम्भोधिजठरे तृष्णाकुहरकान्तरे ।
सुप्तस्तिष्ठति मुक्तेहो मूकोऽयं कायकच्छपः ॥ ४६ ॥

saṃsārāmbhodhijaṭhare tṛṣṇākuharakāntare ,
suptastiṣṭhati mukteho mūko'yaṃ kāyakacchapaḥ 46

46. saṃsārāmbhodijaṭhare tṛṣṇākuharakāntare suptaḥ
tiṣṭhati muktehaḥ mūkaḥ ayam kāyakacchapaḥ

46. Within the belly of the ocean of transmigratory existence (saṃsāra), in the cavernous interior of desire (tṛṣṇā), this body-tortoise, silent and having abandoned its efforts, lies dormant.

Words meanings summery:

• संसाराम्भोदिजठरे (saṁsārāmbhodijaṭhare) - in the belly of the ocean of transmigratory existence

• तृष्णाकुहरकान्तरे (tṛṣṇākuharakāntare) - in the cave-like interior of desire

• सुप्तः (suptaḥ) - dormant (asleep, sleeping, dormant)

• तिष्ठति (tiṣṭhati) - remains (stands, remains, stays)

• मुक्तेहः (muktehaḥ) - having abandoned its efforts (desires/pursuits) (having abandoned efforts, free from desire, desireless)

• मूकः (mūkaḥ) - silent (silent, mute, dumb)

• अयम् (ayam) - this

• कायकच्छपः (kāyakacchapaḥ) - body-tortoise

Words meanings and morphology

संसाराम्भोदिजठरे (saṁsārāmbhodijaṭhare) - in the belly of the ocean of transmigratory existence

(noun)

Locative, neuter, singular of saṃsārāmbhodijaṭhara

saṁsārāmbhodijaṭhara - belly of the ocean of saṃsāra

Compound type : tatpurusha (saṃsāra+ambhodhi+jaṭhara)

• saṃsāra – transmigratory existence, wandering, cycle of birth and death
  noun (masculine)
  Prefix: sam
  Root: sṛ (class 1)
• ambhodhi – ocean, receptacle of waters
  noun (masculine)
  Root: dhā (class 3)
• jaṭhara – belly, stomach, interior
  noun (neuter)

तृष्णाकुहरकान्तरे (tṛṣṇākuharakāntare) - in the cave-like interior of desire

(noun)

Locative, neuter, singular of tṛṣṇākuharakāntara

tṛṣṇākuharakāntara - inner space of the cave of desire

Compound type : tatpurusha (tṛṣṇā+kuhara+antara)

• tṛṣṇā – thirst, desire, craving
  noun (feminine)
  from root tṛṣ
  Root: tṛṣ (class 4)
• kuhara – cave, cavern, hollow
  noun (neuter)
• antara – interior, inside, interval
  noun (neuter)

सुप्तः (suptaḥ) - dormant (asleep, sleeping, dormant)

(adjective)

Nominative, masculine, singular of supta

supta - asleep, sleeping, dormant

Past Passive Participle

From root svap

Root: svap (class 2)

Note: Agrees with kāyakacchapaḥ.

तिष्ठति (tiṣṭhati) - remains (stands, remains, stays)

(verb)

3rd person , singular, active, present (laṭ) of sthā

Present Active Indicative

3rd person singular, parasmaipada

Root: sthā (class 1)

मुक्तेहः (muktehaḥ) - having abandoned its efforts (desires/pursuits) (having abandoned efforts, free from desire, desireless)

(adjective)

Nominative, masculine, singular of mukteha

mukteha - one whose efforts/desires are abandoned

Compound type : bahuvrihi (mukta+īhā)

• mukta – freed, released, abandoned
  adjective (masculine)
  Past Passive Participle
  from root muc
  Root: muc (class 6)
• īhā – effort, desire, striving
  noun (feminine)
  Root: ih (class 1)

Note: Agrees with kāyakacchapaḥ.

मूकः (mūkaḥ) - silent (silent, mute, dumb)

(adjective)

Nominative, masculine, singular of mūka

mūka - silent, mute, dumb

Note: Agrees with kāyakacchapaḥ.

अयम् (ayam) - this

(pronoun)

Nominative, masculine, singular of idam

idam - this, this one

Note: Agrees with kāyakacchapaḥ.

कायकच्छपः (kāyakacchapaḥ) - body-tortoise

(noun)

Nominative, masculine, singular of kāyakacchapa

kāyakacchapa - body-tortoise, the tortoise that is the body

Compound type : karmadhāraya (kāya+kacchapa)

• kāya – body, mass
  noun (masculine)
• kacchapa – tortoise, turtle
  noun (masculine)

Note: Subject of the sentence.