योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-18, verse-42

असत्यताभिधं सत्यं मुक्त एव भवेच्छिवः ।
सातिवाहिकदेहैकपरिक्षयविकासवान् ॥ ४२ ॥

asatyatābhidhaṃ satyaṃ mukta eva bhavecchivaḥ ,
sātivāhikadehaikaparikṣayavikāsavān 42

42. asatyatābhidham satyam muktaḥ eva bhavet
śivaḥ sātivāhikadehaikaparikṣayavikāsavān

42. asatyatābhidham satyam muktaḥ eva
sātivāhikadehaikaparikṣayavikāsavān śivaḥ bhavet

42. That reality (satya) which is designated as unreality (asatya) – only the liberated (mokṣa) one becomes auspicious (Śiva), characterized by the complete dissolution of the subtle body (ātivāhika deha) as the sole means of liberation's unfolding.

Words meanings summery:

• असत्यताभिधम् (asatyatābhidham) - designated as unreality (asatya) (named as unreality, designated as non-existence)

• सत्यम् (satyam) - the ultimate reality (satya) (truth, reality, existent)

• मुक्तः (muktaḥ) - one who is liberated (mokṣa) (liberated, freed)

• एव (eva) - only (indeed, only, just)

• भवेत् (bhavet) - becomes (may be, should be, would be, becomes)

• शिवः (śivaḥ) - auspicious (Śiva) (auspicious, benevolent, Shiva)

• सातिवाहिकदेहैकपरिक्षयविकासवान् (sātivāhikadehaikaparikṣayavikāsavān) - characterized by the complete dissolution of the subtle body (ātivāhika deha) as the sole means of liberation's unfolding (possessing the development/unfolding characterized by the sole destruction of the subtle body)

Words meanings and morphology

असत्यताभिधम् (asatyatābhidham) - designated as unreality (asatya) (named as unreality, designated as non-existence)

(adjective)

Nominative, neuter, singular of asatyatābhidha

asatyatābhidha - named unreality; that whose name is unreality

Bahuvrihi compound meaning 'that which has unreality as its name/designation'.

Compound type : bahuvrīhi (asatyatā+abhidha)

• asatyatā – unreality, falseness
  noun (feminine)
  Derived from asatya + tā.
  Prefix: a
• abhidha – name, designation, named
  noun (masculine)
  Derived from root dhā with prefix abhi-.
  Prefix: abhi
  Root: dhā (class 3)

Note: Qualifying satyam.

सत्यम् (satyam) - the ultimate reality (satya) (truth, reality, existent)

(noun)

Nominative, neuter, singular of satya

satya - true, real, existent, truth, reality

Note: Subject of the sentence.

मुक्तः (muktaḥ) - one who is liberated (mokṣa) (liberated, freed)

(adjective)

Nominative, masculine, singular of mukta

mukta - liberated, released, freed, unyoked

Past Passive Participle

Derived from root muc (to release, free).

Root: muc (class 6)

Note: Subject of bhavet śivaḥ.

एव (eva) - only (indeed, only, just)

(indeclinable)

Emphatic particle.

Note: Emphasizes muktaḥ.

भवेत् (bhavet) - becomes (may be, should be, would be, becomes)

(verb)

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

Optative Mood, 3rd Person Singular

Derived from root bhū (class 1).

Root: bhū (class 1)

शिवः (śivaḥ) - auspicious (Śiva) (auspicious, benevolent, Shiva)

(adjective)

Nominative, masculine, singular of śiva

śiva - auspicious, benevolent, propitious, kind, happy, Shiva (as proper noun)

Note: Predicate for muktaḥ.

सातिवाहिकदेहैकपरिक्षयविकासवान् (sātivāhikadehaikaparikṣayavikāsavān) - characterized by the complete dissolution of the subtle body (ātivāhika deha) as the sole means of liberation's unfolding (possessing the development/unfolding characterized by the sole destruction of the subtle body)

(adjective)

Nominative, masculine, singular of sātivāhikadehaikaparikṣayavikāsavat

sātivāhikadehaikaparikṣayavikāsavat - one who possesses the development/unfolding of the sole destruction of the subtle body

Bahuvrihi compound modifying mukta. Ends with possessive suffix vat.

Compound type : bahuvrīhi (sa+ātivāhikadeha+eka+parikṣaya+vikāsavat)

• sa – with, possessing
  indeclinable
  Prefix indicating 'with' in Bahuvrihi compounds.
• ātivāhikadeha – subtle body
  noun (masculine)
  Compound of ātivāhika and deha.
• eka – one, sole, only
  numeral
• parikṣaya – complete destruction, dissolution
  noun (masculine)
  Derived from root kṣi with prefix pari-.
  Prefix: pari
  Root: kṣi (class 5)
• vikāsavat – possessing development, expanding
  adjective (masculine)
  Formed from vikāsa (development) with possessive suffix vat.

Note: Qualifies muktaḥ.