योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-51, verse-26

स्वभावेतरनामासौ स्वसंकल्पमयात्मकः ।
कश्चित्कदाचिद्भवति स्वभावेनैव नान्यथा ॥ २६ ॥

svabhāvetaranāmāsau svasaṃkalpamayātmakaḥ ,
kaścitkadācidbhavati svabhāvenaiva nānyathā 26

26. svabhāvetaranāmā asau svasaṅkalpamayātmakaḥ
kaścit kadācit bhavati svabhāvena eva na anyathā

26. asau svasaṅkalpamayātmakaḥ svabhāvetaranāmā
kaścit kadācit svabhāvena eva bhavati na anyathā

26. That which is named differently from its intrinsic nature, and whose very self (ātman) is constituted by its own resolve, manifests itself sometimes. This manifestation occurs solely through its intrinsic nature, and not in any other way.

Words meanings summery:

• स्वभावेतरनामा (svabhāvetaranāmā) - whose name is other than its intrinsic nature

• असौ (asau) - that one, he

• स्वसङ्कल्पमयात्मकः (svasaṅkalpamayātmakaḥ) - whose nature/self consists of its own resolve/will

• कश्चित् (kaścit) - someone, something, a certain one

• कदाचित् (kadācit) - sometimes, at some time, occasionally

• भवति (bhavati) - becomes, exists, happens, comes into being

• स्वभावेन (svabhāvena) - by intrinsic nature, by its own nature

• एव (eva) - alone, only, indeed, just

• न (na) - not, no

• अन्यथा (anyathā) - otherwise, in another way

Words meanings and morphology

स्वभावेतरनामा (svabhāvetaranāmā) - whose name is other than its intrinsic nature

(adjective)

Nominative, masculine, singular of svabhāvetaranāman

svabhāvetaranāman - whose name is other than its own nature

Compound type : Bahuvrīhi (svabhāva+itara+nāman)

• svabhāva – intrinsic nature, own being
  noun (masculine)
• itara – other, different
  adjective
• nāman – name, appellation
  noun (neuter)

असौ (asau) - that one, he

(pronoun)

Nominative, masculine, singular of adas

adas - that, that one

स्वसङ्कल्पमयात्मकः (svasaṅkalpamayātmakaḥ) - whose nature/self consists of its own resolve/will

(adjective)

Nominative, masculine, singular of svasaṅkalpamayātmaka

svasaṅkalpamayātmaka - whose self is made of its own resolve

Compound type : Bahuvrīhi (sva+saṅkalpa+maya+ātman)

• sva – own, one's own
  adjective
• saṅkalpa – resolve, intention, will
  noun (masculine)
• maya – made of, consisting of (suffix)
  adjective
  suffix -maya
• ātman – self, soul, essence, individual self
  noun (masculine)

कश्चित् (kaścit) - someone, something, a certain one

(pronoun)

Nominative, masculine, singular of kaścid

kaścid - someone, something, a certain one

कदाचित् (kadācit) - sometimes, at some time, occasionally

(indeclinable)

भवति (bhavati) - becomes, exists, happens, comes into being

(verb)

3rd person , singular, active, present indicative (laṭ) of bhū

Root: bhū (class 1)

स्वभावेन (svabhāvena) - by intrinsic nature, by its own nature

(noun)

Instrumental, masculine, singular of svabhāva

svabhāva - intrinsic nature, own being, natural state

एव (eva) - alone, only, indeed, just

(indeclinable)

न (na) - not, no

(indeclinable)

अन्यथा (anyathā) - otherwise, in another way

(indeclinable)