योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-31, verse-27

अथवा शान्ततैवास्य निर्वाणस्यावशिष्यते ।
निर्वासनः किल मुनिः कथं व्यवहरत्वसौ ॥ २७ ॥

athavā śāntataivāsya nirvāṇasyāvaśiṣyate ,
nirvāsanaḥ kila muniḥ kathaṃ vyavaharatvasau 27

27. athavā śāntatā eva asya nirvāṇasya avaśiṣyate
nirvāsanaḥ kila muniḥ katham vyavaharatu asau

27. athavā asya nirvāṇasya śāntatā eva avaśiṣyate
kila nirvāsanaḥ muniḥ asau katham vyavaharatu

27. Alternatively, only serenity remains as his final liberation (nirvāṇa). For how can such a sage, truly free from latent desires, engage in worldly activity?

Words meanings summery:

• अथवा (athavā) - or else, alternatively

• शान्तता (śāntatā) - peacefulness, serenity, tranquility

• एव (eva) - only, just, indeed

• अस्य (asya) - of him, his

• निर्वाणस्य (nirvāṇasya) - of final liberation (nirvāṇa), of extinction, of tranquility

• अवशिष्यते (avaśiṣyate) - remains, is left over

• निर्वासनः (nirvāsanaḥ) - devoid of latent impressions/desires, without vāsana (latent impressions)

• किल (kila) - indeed, surely, as it is said

• मुनिः (muniḥ) - a sage, a silent one, an ascetic

• कथम् (katham) - how, in what manner

• व्यवहरतु (vyavaharatu) - may he act, let him behave

• असौ (asau) - that one, this one, he

Words meanings and morphology

अथवा (athavā) - or else, alternatively

(indeclinable)

शान्तता (śāntatā) - peacefulness, serenity, tranquility

(noun)

Nominative, feminine, singular of śāntatā

śāntatā - peacefulness, serenity, tranquility

Derived from śānta (calm) + -tā (abstract noun suffix)

एव (eva) - only, just, indeed

(indeclinable)

अस्य (asya) - of him, his

(pronoun)

Genitive, masculine, singular of idam

idam - this, that, he, him

निर्वाणस्य (nirvāṇasya) - of final liberation (nirvāṇa), of extinction, of tranquility

(noun)

Genitive, neuter, singular of nirvāṇa

nirvāṇa - final liberation (nirvāṇa), extinction, tranquility, blowing out

Derived from root vā (to blow) with prefix nir, literally 'blowing out', metaphorically 'extinction' or 'liberation'.

Prefix: nir

Root: vā (class 2)

अवशिष्यते (avaśiṣyate) - remains, is left over

(verb)

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

Present tense, middle voice

Root śiṣ with prefix ava.

Prefix: ava

Root: śiṣ (class 7)

निर्वासनः (nirvāsanaḥ) - devoid of latent impressions/desires, without vāsana (latent impressions)

(adjective)

Nominative, masculine, singular of nirvāsana

nirvāsana - without latent impressions/desires, free from habitual tendencies

Compound of nir (without) and vāsana (latent impression).

Compound type : bahuvrīhi (nir+vāsana)

• nir – without, out of, away from
  indeclinable
• vāsana – latent impression, habitual tendency, desire
  noun (feminine)
  Derived from root vās (to dwell, to perfume, to wait)
  Root: vās (class 4)

Note: Qualifies muniḥ.

किल (kila) - indeed, surely, as it is said

(indeclinable)

मुनिः (muniḥ) - a sage, a silent one, an ascetic

(noun)

Nominative, masculine, singular of muni

muni - sage, ascetic, silent one

कथम् (katham) - how, in what manner

(indeclinable)

व्यवहरतु (vyavaharatu) - may he act, let him behave

(verb)

3rd person , singular, active, imperative (loṭ) of vyavahṛ

Imperative mood, 3rd person singular

Root hṛ with prefixes vi and ava.

Prefixes: vi+ava

Root: hṛ (class 1)

असौ (asau) - that one, this one, he

(pronoun)

Nominative, masculine, singular of adas

adas - that, this, he, she, it (remote demonstrative pronoun)