योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-89, verse-25

स्वभाव एष वस्तूनां स्वतःसिद्धिर्हि नान्यतः ।
नियतिं न जहात्येव शशाङ्क इव शीतताम् ॥ २५ ॥

svabhāva eṣa vastūnāṃ svataḥsiddhirhi nānyataḥ ,
niyatiṃ na jahātyeva śaśāṅka iva śītatām 25

25. svabhāvaḥ eṣaḥ vastūnām svataḥ-siddhiḥ hi na
anyataḥ niyatiṃ na jahāti eva śaśāṅkaḥ iva śītatām

25. eṣaḥ vastūnām svabhāvaḥ hi svataḥ-siddhiḥ na
anyataḥ śaśāṅkaḥ śītatām iva eva niyatiṃ na jahāti

25. This is the intrinsic nature (svabhāva) of things: their self-existence (svataḥsiddhi), not derived from anything else. It (this intrinsic nature) never deviates from natural law (niyati), just as the moon (śaśāṅka) does not abandon its coolness.

Words meanings summery:

• स्वभावः (svabhāvaḥ) - intrinsic nature (svabhāva), inherent quality, essence

• एषः (eṣaḥ) - this

• वस्तूनाम् (vastūnām) - of things, of objects

• स्वतः-सिद्धिः (svataḥ-siddhiḥ) - self-accomplishment (svataḥsiddhi), self-existence, inherent perfection

• हि (hi) - indeed, for, because

• न (na) - not, no

• अन्यतः (anyataḥ) - from elsewhere, from another

• नियतिं (niyatiṁ) - natural law (niyati), destiny, fate

• न (na) - not, no

• जहाति (jahāti) - abandons, leaves, forsakes

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

• शशाङ्कः (śaśāṅkaḥ) - moon (śaśāṅka)

• इव (iva) - like, as

• शीतताम् (śītatām) - coolness, coldness

Words meanings and morphology

स्वभावः (svabhāvaḥ) - intrinsic nature (svabhāva), inherent quality, essence

(noun)

Nominative, masculine, singular of svabhāva

svabhāva - self-existence, inherent nature, intrinsic disposition

Compound type : tatpuruṣa (sva+bhāva)

• sva – one's own, self
  pronoun
• bhāva – being, existence, state, nature, disposition
  noun (masculine)
  Root: bhū (class 1)

एषः (eṣaḥ) - this

(pronoun)

Nominative, masculine, singular of etad

etad - this

वस्तूनाम् (vastūnām) - of things, of objects

(noun)

Genitive, neuter, plural of vastu

vastu - thing, object, substance

स्वतः-सिद्धिः (svataḥ-siddhiḥ) - self-accomplishment (svataḥsiddhi), self-existence, inherent perfection

(noun)

Nominative, feminine, singular of svataḥ-siddhi

svataḥ-siddhi - self-proven, self-existent, inherent accomplishment

Compound type : tatpuruṣa (svataḥ+siddhi)

• svataḥ – from oneself, spontaneously, naturally
  indeclinable
• siddhi – accomplishment, success, perfection, proof
  noun (feminine)
  Root: sidh (class 4)

हि (hi) - indeed, for, because

(indeclinable)

न (na) - not, no

(indeclinable)

अन्यतः (anyataḥ) - from elsewhere, from another

(indeclinable)

नियतिं (niyatiṁ) - natural law (niyati), destiny, fate

(noun)

Accusative, feminine, singular of niyati

niyati - natural law, destiny, fate, fixed order

From root yam (to control, restrain) with prefix ni.

Prefix: ni

Root: yam (class 1)

न (na) - not, no

(indeclinable)

जहाति (jahāti) - abandons, leaves, forsakes

(verb)

3rd person , singular, active, present (laṭ) of hā

Root: hā (class 3)

एव (eva) - only, just, indeed, precisely

(indeclinable)

शशाङ्कः (śaśāṅkaḥ) - moon (śaśāṅka)

(noun)

Nominative, masculine, singular of śaśāṅka

śaśāṅka - moon (literally 'marked by a hare')

इव (iva) - like, as

(indeclinable)

शीतताम् (śītatām) - coolness, coldness

(noun)

Accusative, feminine, singular of śītatā

śītatā - coolness, coldness

Derived from 'śīta' (cold) with suffix '-tā'.