योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-11, verse-10

निश्चयो यस्त्रिनेत्रस्य कान्तया सह तिष्ठतः ।
ब्रह्मणो वाप्यरागस्य स ते भवतु राघव ॥ १० ॥

niścayo yastrinetrasya kāntayā saha tiṣṭhataḥ ,
brahmaṇo vāpyarāgasya sa te bhavatu rāghava 10

10. niscayaḥ yaḥ trinetrasya kāntayā saha tiṣṭhataḥ
brahmaṇaḥ vā api arāgasya saḥ te bhavatu rāghava

10. rāghava te saḥ niscayaḥ bhavatu yaḥ trinetrasya
kāntayā saha tiṣṭhataḥ vā api arāgasya brahmaṇaḥ

10. O Rāghava, may that firm resolve (niscaya) which belongs to the three-eyed (Shiva), who abides with his beloved, or even to the dispassionate Brahmā, be yours.

Words meanings summery:

• निस्चयः (niscayaḥ) - firm resolve (certainty, resolve, firm conviction, determination)

• यः (yaḥ) - which (who, which)

• त्रिनेत्रस्य (trinetrasya) - of the three-eyed (Shiva) (of the three-eyed one, of Shiva)

• कान्तया (kāntayā) - with his beloved (Pārvatī) (with a beloved, with a wife, with Pārvatī)

• सह (saha) - with (with, accompanied by)

• तिष्ठतः (tiṣṭhataḥ) - of him who abides (of him standing, of him abiding, of him existing)

• ब्रह्मणः (brahmaṇaḥ) - of Brahmā (of Brahmā, of the sacred word, of the supreme reality (brahman))

• वा (vā) - or

• अपि (api) - even (also, even, too)

• अरागस्य (arāgasya) - of the dispassionate one (of the passionless, of the dispassionate)

• सः (saḥ) - that (resolve) (that, he)

• ते (te) - to you (indirect object) (to you, your)

• भवतु (bhavatu) - may it be (may it be, let it be, let him be)

• राघव (rāghava) - O Rāghava (Rāma) (O descendant of Raghu, O Rāma)

Words meanings and morphology

निस्चयः (niscayaḥ) - firm resolve (certainty, resolve, firm conviction, determination)

(noun)

Nominative, masculine, singular of niscaya

niscaya - certainty, conviction, determination, resolve

From ni-śrī-ci 'to ascertain, decide'.

Prefix: ni

Root: ci (class 5)

यः (yaḥ) - which (who, which)

(pronoun)

Nominative, masculine, singular of yad

yad - which, what, who

Note: Agrees with `niscayaḥ`.

त्रिनेत्रस्य (trinetrasya) - of the three-eyed (Shiva) (of the three-eyed one, of Shiva)

(proper noun)

Genitive, masculine, singular of trinetra

trinetra - three-eyed, Shiva

Compound type : bahuvrīhi (tri+netra)

• tri – three
  numeral
• netra – eye
  noun (neuter)
  Root: nī (class 1)

Note: Refers to Shiva.

कान्तया (kāntayā) - with his beloved (Pārvatī) (with a beloved, with a wife, with Pārvatī)

(noun)

Instrumental, feminine, singular of kāntā

kāntā - beloved woman, wife, charming woman

Feminine form of kānta (beloved), from root kam (to desire).

Root: kam (class 1)

Note: Used with `saha`.

सह (saha) - with (with, accompanied by)

(indeclinable)

तिष्ठतः (tiṣṭhataḥ) - of him who abides (of him standing, of him abiding, of him existing)

(adjective)

Genitive, masculine, singular of tiṣṭhat

tiṣṭhat - standing, abiding, existing

Present Active Participle

From root sthā (to stand).

Root: sthā (class 1)

ब्रह्मणः (brahmaṇaḥ) - of Brahmā (of Brahmā, of the sacred word, of the supreme reality (brahman))

(proper noun)

Genitive, masculine, singular of brahman

brahman - Brahmā (the creator god), the Absolute (brahman), sacred word, prayer

Root: bṛh (class 1)

वा (vā) - or

(indeclinable)

अपि (api) - even (also, even, too)

(indeclinable)

अरागस्य (arāgasya) - of the dispassionate one (of the passionless, of the dispassionate)

(adjective)

Genitive, masculine, singular of arāga

arāga - without passion, dispassionate, unattached

From a (negation) + rāga (passion, attachment).

Compound type : nañ-tatpuruṣa (a+rāga)

• a – not, un-
  indeclinable
• rāga – passion, attachment, color, melody
  noun (masculine)
  From root rañj (to color, dye).
  Root: rañj (class 1)

सः (saḥ) - that (resolve) (that, he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, it, he, she

ते (te) - to you (indirect object) (to you, your)

(pronoun)

Dative, singular of yuṣmad

yuṣmad - you

भवतु (bhavatu) - may it be (may it be, let it be, let him be)

(verb)

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

Root: bhū (class 1)

राघव (rāghava) - O Rāghava (Rāma) (O descendant of Raghu, O Rāma)

(proper noun)

Vocative, masculine, singular of rāghava

rāghava - descendant of Raghu, Rāma

Patronymic from Raghu.