योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-10, verse-39

नाशयित्वा स्वमात्मानं मनसो वृत्तिसंक्षये ।
सद्रूपं यदनाख्येयं तद्रूपं तस्य वस्तुनः ॥ ३९ ॥

nāśayitvā svamātmānaṃ manaso vṛttisaṃkṣaye ,
sadrūpaṃ yadanākhyeyaṃ tadrūpaṃ tasya vastunaḥ 39

39. nāśayitvā svam ātmānam manasaḥ vṛtti-saṃkṣaye
sat-rūpam yat anākhyeyam tad rūpam tasya vastunaḥ

39. manasaḥ vṛtti-saṃkṣaye svam ātmānam nāśayitvā
yat sat-rūpam anākhyeyam tat tasya vastunaḥ rūpam

39. Having annihilated one's self (ātman) through the complete cessation of the mind's (manas) modifications (vṛtti), that form which is existent (sat) and indescribable is the nature of that reality.

Words meanings summery:

• नाशयित्वा (nāśayitvā) - having destroyed, having annihilated

• स्वम् (svam) - one's own, self, own

• आत्मानम् (ātmānam) - the self (ātman), soul

• मनसः (manasaḥ) - of the mind (manas), from the mind

• वृत्ति-संक्षये (vṛtti-saṁkṣaye) - in the complete cessation of the modifications, in the complete destruction of the mental functions

• सत्-रूपम् (sat-rūpam) - the existent form, the form of existence, the true nature

• यत् (yat) - which, that which

• अनाख्येयम् (anākhyeyam) - indescribable, inexpressible

• तद् (tad) - that

• रूपम् (rūpam) - form, nature, appearance, shape

• तस्य (tasya) - of that

• वस्तुनः (vastunaḥ) - of the reality, of the thing, of the substance

Words meanings and morphology

नाशयित्वा (nāśayitvā) - having destroyed, having annihilated

(indeclinable)

Absolutive (Ktvā)

Causative stem nāśi + ktvā suffix.

Root: naś (class 4)

Note: Absolutive participle

स्वम् (svam) - one's own, self, own

(pronoun)

Accusative, neuter, singular of sva

sva - self, own, one's own people

Note: Can also be masculine singular accusative. Here functions as an adjective modifying 'ātman'.

आत्मानम् (ātmānam) - the self (ātman), soul

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, individual soul, the Supreme Soul (ātman)

मनसः (manasaḥ) - of the mind (manas), from the mind

(noun)

Genitive, neuter, singular of manas

manas - mind, intellect, thought, understanding (manas)

Note: Can also be ablative singular.

वृत्ति-संक्षये (vṛtti-saṁkṣaye) - in the complete cessation of the modifications, in the complete destruction of the mental functions

(noun)

Locative, masculine, singular of vṛtti-saṃkṣaya

vṛtti-saṁkṣaya - complete cessation of modifications, complete destruction of mental functions

Compound type : tatpuruṣa (vṛtti+saṃkṣaya)

• vṛtti – modification, mental activity, function, state
  noun (feminine)
  Root: vṛt (class 1)
• saṃkṣaya – cessation, destruction, annihilation, decrease
  noun (masculine)
  Prefix: sam
  Root: kṣi (class 5)

सत्-रूपम् (sat-rūpam) - the existent form, the form of existence, the true nature

(noun)

Nominative, neuter, singular of sat-rūpa

sat-rūpa - the existent form, the form of being, the true nature

Compound type : tatpuruṣa (sat+rūpa)

• sat – existent, real, true, good
  adjective
  Present Active Participle
  From root as (to be).
  Root: as (class 2)
• rūpa – form, nature, appearance, shape
  noun (neuter)

Note: Can also be accusative.

यत् (yat) - which, that which

(pronoun)

Nominative, neuter, singular of yad

yad - which, what (relative pronoun)

Note: Can also be neuter singular accusative.

अनाख्येयम् (anākhyeyam) - indescribable, inexpressible

(adjective)

Nominative, neuter, singular of anākhyeya

anākhyeya - indescribable, inexpressible, not to be mentioned

Gerundive

Negative prefix an- + gerundive of ā-khyā (to tell, describe).

Compound type : nañ-tatpuruṣa (an+ākhyeya)

• an – not, non-
  indeclinable
  Negative prefix.
• ākhyeya – to be described, to be told
  gerundive
  Gerundive
  From root khyā with upasarga ā.
  Prefix: ā
  Root: khyā (class 2)

Note: Can also be accusative.

तद् (tad) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that (pronoun)

Note: Can also be neuter singular accusative.

रूपम् (rūpam) - form, nature, appearance, shape

(noun)

Nominative, neuter, singular of rūpa

rūpa - form, nature, appearance, shape, beauty

Note: Can also be accusative.

तस्य (tasya) - of that

(pronoun)

Genitive, masculine, singular of tad

tad - that (pronoun)

Note: Can also be neuter singular genitive.

वस्तुनः (vastunaḥ) - of the reality, of the thing, of the substance

(noun)

Genitive, neuter, singular of vastu

vastu - thing, object, substance, reality

Note: Can also be ablative singular.