योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-66, verse-14

चिद्धनैकप्रपातस्य रूढस्य परमे पदे ।
नैरात्म्यशून्यवेद्याद्यैः पर्यायैः कथनं भवेत् ॥ १४ ॥

ciddhanaikaprapātasya rūḍhasya parame pade ,
nairātmyaśūnyavedyādyaiḥ paryāyaiḥ kathanaṃ bhavet 14

14. ciddhanaikaprapātasya rūḍhasya parame pade
nairātmyashūnyavedyādyaiḥ paryāyaiḥ kathanaṁ bhavet

14. parame pade rūḍhasya ciddhanaikaprapātasya
nairātmyashūnyavedyādyaiḥ paryāyaiḥ kathanaṁ bhavet

14. For that which is established in the supreme state (paramam padam) as the singular manifestation of profound consciousness, its description would occur through various terms like 'selflessness (nairātmya)', 'void', and 'the knowable'.

Words meanings summery:

• चिद्धनैकप्रपातस्य (ciddhanaikaprapātasya) - of the singular manifestation of profound consciousness (of the singular manifestation of profound consciousness, of the descent of the one mass of consciousness)

• रूढस्य (rūḍhasya) - of that which is established (of that which is established, rooted, well-known)

• परमे (parame) - in the supreme, highest

• पदे (pade) - in the supreme state (in the state, in the abode, in the condition)

• नैरात्म्यस्हून्यवेद्याद्यैः (nairātmyashūnyavedyādyaiḥ) - by terms like 'selflessness (nairātmya)', 'void', and 'the knowable' (by terms like selflessness, void, and knowable; by selflessness, void, knowable, and so on)

• पर्यायैः (paryāyaiḥ) - by synonyms, by alternative terms, by different modes

• कथनं (kathanaṁ) - narration, description, statement, telling

• भवेत् (bhavet) - would occur (may be, would be, should be, happens)

Words meanings and morphology

चिद्धनैकप्रपातस्य (ciddhanaikaprapātasya) - of the singular manifestation of profound consciousness (of the singular manifestation of profound consciousness, of the descent of the one mass of consciousness)

(noun)

Genitive, masculine, singular of ciddhanaikaprapāta

ciddhanaikaprapāta - the singular manifestation/descent of the dense/profound consciousness

Compound type : ṣaṣṭhī-tatpuruṣa (cit+ghana+eka+prapāta)

• cit – consciousness, mind, intellect
  noun (feminine)
• ghana – dense, thick, profound, mass
  adjective
• eka – one, single, unique
  adjective
• prapāta – descent, fall, manifestation, emergence
  noun (masculine)
  Prefix: pra
  Root: pat (class 1)

रूढस्य (rūḍhasya) - of that which is established (of that which is established, rooted, well-known)

(adjective)

Genitive, masculine, singular of rūḍha

rūḍha - established, rooted, grown, famous, conventional

Past Passive Participle

root `ruh` + `kta` suffix

Root: ruh (class 1)

परमे (parame) - in the supreme, highest

(adjective)

Locative, neuter, singular of parama

parama - supreme, highest, ultimate, best

पदे (pade) - in the supreme state (in the state, in the abode, in the condition)

(noun)

Locative, neuter, singular of pada

pada - foot, step, place, state, abode, word

नैरात्म्यस्हून्यवेद्याद्यैः (nairātmyashūnyavedyādyaiḥ) - by terms like 'selflessness (nairātmya)', 'void', and 'the knowable' (by terms like selflessness, void, and knowable; by selflessness, void, knowable, and so on)

(noun)

Instrumental, masculine, plural of nairātmyashūnyavedyādi

nairātmyashūnyavedyādi - beginning with nairātmya, śūnya, and vedya; selflessness, void, knowable, etc.

Compound type : dvandva (nairātmya+śūnya+vedya+ādi)

• nairātmya – selflessness, non-existence of a self (ātman)
  noun (neuter)
  from nir-ātman + ṣyañ
  Prefix: nir
• śūnya – void, empty, zero, devoid of
  adjective (neuter)
• vedya – knowable, that which is to be known or understood
  adjective (neuter)
  Gerundive
  root `vid` + `ya` suffix
  Root: vid (class 2)
• ādi – beginning, and so on, et cetera
  indeclinable

पर्यायैः (paryāyaiḥ) - by synonyms, by alternative terms, by different modes

(noun)

Instrumental, masculine, plural of paryāya

paryāya - synonym, alternative term, mode, turn, succession

Prefix: pari

Root: i (class 2)

कथनं (kathanaṁ) - narration, description, statement, telling

(noun)

Nominative, neuter, singular of kathana

kathana - telling, speaking, narration, description

root `kath` + `lyuṭ` suffix

Root: kath (class 10)

भवेत् (bhavet) - would occur (may be, would be, should be, happens)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

Root: bhū (class 1)