योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-94, verse-54

स ब्रह्मा ब्रह्ममात्रात्मा ब्रह्ममात्रात्मनोस्तयोः ।
अजातयोरेव सदा तदात्मजगतोर्द्वयोः ॥ ५४ ॥

sa brahmā brahmamātrātmā brahmamātrātmanostayoḥ ,
ajātayoreva sadā tadātmajagatordvayoḥ 54

54. sa brahmā brahmamātrātmā brahmamātrātmanoḥ
tayoḥ ajātayoḥ eva sadā tadātmajagatayoḥ dvayoḥ

54. sa brahmā brahmamātrātmā sadā tayoḥ dvayoḥ
ajātayoḥ eva brahmamātrātmanoḥ tadātmajagatayoḥ

54. That Brahmā, whose very essence is solely the absolute (brahman), always (exists) in those two—the individual soul (ātman) and the universe (jagat)—which are themselves of the nature of the absolute (brahman) and are eternally unborn.

Words meanings summery:

• स (sa) - he, that

• ब्रह्मा (brahmā) - Brahma (the creator god)

• ब्रह्ममात्रात्मा (brahmamātrātmā) - whose essence is merely the absolute (brahman), whose self is only Brahman

• ब्रह्ममात्रात्मनोः (brahmamātrātmanoḥ) - of those two whose essence is merely the absolute (brahman)

• तयोः (tayoḥ) - of those two

• अजातयोह् (ajātayoh) - of the unborn two, of those two who are unborn

• एव (eva) - only, just, indeed

• सदा (sadā) - always, ever, constantly

• तदात्मजगतयोः (tadātmajagatayoḥ) - of the individual soul (ātman) and the universe (jagat)

• द्वयोः (dvayoḥ) - of the two

Words meanings and morphology

स (sa) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to Brahmā

ब्रह्मा (brahmā) - Brahma (the creator god)

(proper noun)

Nominative, masculine, singular of brahman

brahman - Brahma (the creator god), a priest, the sacred syllable Om

Note: Subject of the implied verb 'is' or 'exists'

ब्रह्ममात्रात्मा (brahmamātrātmā) - whose essence is merely the absolute (brahman), whose self is only Brahman

(adjective)

Nominative, masculine, singular of brahmamātrātman

brahmamātrātman - one whose self/essence is merely Brahman

Compound

Compound type : bahuvrīhi (brahman+mātra+ātman)

• brahman – the absolute, ultimate reality
  noun (neuter)
• mātra – merely, only, consisting of
  indeclinable
  Suffix or word indicating limitation
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

Note: Predicative adjective for Brahmā

ब्रह्ममात्रात्मनोः (brahmamātrātmanoḥ) - of those two whose essence is merely the absolute (brahman)

(adjective)

Genitive, masculine, dual of brahmamātrātman

brahmamātrātman - one whose self/essence is merely Brahman

Compound

Compound type : bahuvrīhi (brahman+mātra+ātman)

• brahman – the absolute, ultimate reality
  noun (neuter)
• mātra – merely, only, consisting of
  indeclinable
  Suffix or word indicating limitation
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

Note: Agrees with 'tayoḥ dvayoḥ'

तयोः (tayoḥ) - of those two

(pronoun)

Genitive, masculine, dual of tad

tad - that, he, she, it

Note: Refers to 'tadātmajagatayoḥ'

अजातयोह् (ajātayoh) - of the unborn two, of those two who are unborn

(adjective)

Genitive, masculine, dual of ajāta

ajāta - unborn, not produced, eternal

Past Passive Participle (negative)

na (negative prefix) + jāta (born, ppp of jan)

Compound type : nañ-tatpuruṣa (a+jāta)

• a – not, un-
  prefix
  Negative prefix
• jāta – born, produced, arisen
  adjective (masculine)
  Past Passive Participle
  From root jan (to be born) + kta suffix
  Root: jan (class 4)

Note: Appositive to 'tayoḥ'

एव (eva) - only, just, indeed

(indeclinable)

Particle for emphasis

Note: Emphasizes 'ajātayoh'

सदा (sadā) - always, ever, constantly

(indeclinable)

Adverb

Note: Adverb of time

तदात्मजगतयोः (tadātmajagatayoḥ) - of the individual soul (ātman) and the universe (jagat)

(noun)

Genitive, masculine, dual of tadātmajagat

tadātmajagat - the individual soul and the universe

Dvandva compound

Compound type : dvandva (tadātman+jagat)

• tadātman – that self, the individual soul (that is Brahman)
  noun (masculine)
  Compound (tad + ātman)
• jagat – universe, world, moving, living beings
  noun (neuter)
  Present active participle of gam (to go)
  Root: gam (class 1)

Note: Appositive to 'tayoḥ dvayoḥ'

द्वयोः (dvayoḥ) - of the two

(numeral)

Note: Emphasizes 'tayoḥ'