महाभारतः mahābhārataḥ - book-14, chapter-47, verse-15

द्वावेतौ पक्षिणौ नित्यौ सखायौ चाप्यचेतनौ ।
एताभ्यां तु परो यस्य चेतनावानिति स्मृतः ॥१५॥

15. dvāvetau pakṣiṇau nityau sakhāyau cāpyacetanau ,
etābhyāṁ tu paro yasya cetanāvāniti smṛtaḥ.

15. dvau etau pakṣiṇau nityau sakhāyau ca api acetanau
etābhyām tu paraḥ yasya cetanāvān iti smṛtaḥ

15. dvau etau nityau sakhāyau pakṣiṇau ca api acetanau
tu yasya cetanāvān paraḥ etābhyām iti smṛtaḥ

15. These two, the intellect (buddhi) and ego (ahaṃkāra), are eternal friends, and they are also unconscious. But beyond these two, the supreme consciousness (puruṣa) is indeed remembered.

Words meanings summery:

• द्वौ (dvau) - two

• एतौ (etau) - these two

• पक्षिणौ (pakṣiṇau) - (metaphorically) the intellect (buddhi) and ego (ahaṃkāra) (two birds)

• नित्यौ (nityau) - eternal (dual)

• सखायौ (sakhāyau) - two friends

• च (ca) - and; also; moreover

• अपि (api) - also; even; too; moreover

• अचेतनौ (acetanau) - (referring to buddhi and ahaṃkāra as evolutes of prakṛti, thus not inherently conscious like puruṣa) (unconscious; non-sentient (dual))

• एताभ्याम् (etābhyām) - from these two; by these two

• तु (tu) - but; on the other hand; indeed

• परः (paraḥ) - superior (to these two) (higher; supreme; other; different; excellent)

• यस्य (yasya) - whose; of which

• चेतनावान् (cetanāvān) - (referring to puruṣa) (conscious; sentient; endowed with consciousness)

• इति (iti) - thus; so; in this manner (quotation marker)

• स्मृतः (smṛtaḥ) - remembered; declared; considered; taught

Words meanings and morphology

द्वौ (dvau) - two

(numeral)

एतौ (etau) - these two

(pronoun)

Nominative, masculine, dual of etad

etad - this; these

Demonstrative pronoun.

पक्षिणौ (pakṣiṇau) - (metaphorically) the intellect (buddhi) and ego (ahaṃkāra) (two birds)

(noun)

Nominative, masculine, dual of pakṣin

pakṣin - bird; winged creature

Noun ending in -in.

नित्यौ (nityau) - eternal (dual)

(adjective)

Nominative, masculine, dual of nitya

nitya - eternal; constant; perpetual; regular

सखायौ (sakhāyau) - two friends

(noun)

Nominative, masculine, dual of sakhi

sakhi - friend; companion

Noun ending in -i. Declines irregularly.

च (ca) - and; also; moreover

(indeclinable)

अपि (api) - also; even; too; moreover

(indeclinable)

Particle.

अचेतनौ (acetanau) - (referring to buddhi and ahaṃkāra as evolutes of prakṛti, thus not inherently conscious like puruṣa) (unconscious; non-sentient (dual))

(adjective)

Nominative, masculine, dual of acetana

acetana - unconscious; inanimate; non-sentient; unintelligent

Compound of `a-` (not) and `cetana` (conscious, sentient).

Compound type : nañ-tatpuruṣa (a+cetana)

• a – not; non; un-
  prefix/indeclinable
  Negative prefix
• cetana – conscious; sentient; intelligent; animate
  adjective (masculine)
  From root `cit` (to perceive, to know)
  Root: cit (class 1)

एताभ्याम् (etābhyām) - from these two; by these two

(pronoun)

Ablative, masculine, dual of etad

etad - this; these

Demonstrative pronoun.

Note: Here used in the ablative sense, "beyond/from these".

तु (tu) - but; on the other hand; indeed

(indeclinable)

Conjunction/particle showing contrast or emphasis.

परः (paraḥ) - superior (to these two) (higher; supreme; other; different; excellent)

(adjective)

Nominative, masculine, singular of para

para - other; different; supreme; highest; subsequent

Note: Refers to the supreme being/principle.

यस्य (yasya) - whose; of which

(pronoun)

Genitive, masculine, singular of yad

yad - which; what (relative pronoun)

Relative pronoun.

चेतनावान् (cetanāvān) - (referring to puruṣa) (conscious; sentient; endowed with consciousness)

(adjective)

Nominative, masculine, singular of cetanāvat

cetanāvat - conscious; sentient; intelligent; possessing consciousness

Formed from `cetanā` (consciousness) with possessive suffix `vat`.

इति (iti) - thus; so; in this manner (quotation marker)

(indeclinable)

Particle.

स्मृतः (smṛtaḥ) - remembered; declared; considered; taught

(adjective)

Nominative, masculine, singular of smṛta

smṛta - remembered; recorded; traditional; declared

Past Passive Participle

From root `smṛ` (to remember) with suffix `kta`.

Root: smṛ (class 1)

Note: Functions as a predicate adjective.