महाभारतः mahābhārataḥ - book-10, chapter-3, verse-13

एकस्मिन्नेव पुरुषे सा सा बुद्धिस्तदा तदा ।
भवत्यनित्यप्रज्ञत्वात्सा तस्यैव न रोचते ॥१३॥

13. ekasminneva puruṣe sā sā buddhistadā tadā ,
bhavatyanityaprajñatvātsā tasyaiva na rocate.

13. ekasmin eva puruṣe sā sā buddhiḥ tadā tadā
bhavati anityaprajñatvāt sā tasya eva na rocate

13. ekasmin eva puruṣe tadā tadā sā sā buddhiḥ
bhavati anityaprajñatvāt sā tasya eva na rocate

13. In one and the same person, various intellects (buddhi) arise from time to time. Because of the impermanent nature of his understanding (prajñā), that very (intellect) does not remain pleasing to him.

Words meanings summery:

• एकस्मिन् (ekasmin) - in one, in a single

• एव (eva) - indeed, only, certainly

• पुरुषे (puruṣe) - in a person

• सा (sā) - that (feminine, nominative singular)

• सा (sā) - that (feminine, nominative singular)

• बुद्धिः (buddhiḥ) - intellect, understanding, perception

• तदा (tadā) - then, at that time

• तदा (tadā) - then, at that time

• भवति (bhavati) - arises, comes to be, exists

• अनित्यप्रज्ञत्वात् (anityaprajñatvāt) - due to impermanent understanding/wisdom

• सा (sā) - that (feminine, nominative singular)

• तस्य (tasya) - to him, of him, his (masculine)

• एव (eva) - indeed, only, certainly

• न (na) - not

• रोचते (rocate) - is pleasing, is liked, is attractive

Words meanings and morphology

एकस्मिन् (ekasmin) - in one, in a single

(adjective)

Locative, masculine, singular of eka

eka - one, a single, unique

एव (eva) - indeed, only, certainly

(indeclinable)

पुरुषे (puruṣe) - in a person

(noun)

Locative, masculine, singular of puruṣa

puruṣa - person, man, human being, cosmic person (puruṣa)

सा (sā) - that (feminine, nominative singular)

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, it, this

सा (sā) - that (feminine, nominative singular)

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, it, this

बुद्धिः (buddhiḥ) - intellect, understanding, perception

(noun)

Nominative, feminine, singular of buddhi

buddhi - intellect, understanding, perception, mind, judgment

Root: budh (class 1)

तदा (tadā) - then, at that time

(indeclinable)

तदा (tadā) - then, at that time

(indeclinable)

भवति (bhavati) - arises, comes to be, exists

(verb)

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

Present active

3rd person singular, present tense, active voice

Root: bhū (class 1)

अनित्यप्रज्ञत्वात् (anityaprajñatvāt) - due to impermanent understanding/wisdom

(noun)

Ablative, neuter, singular of anityaprajñatva

anityaprajñatva - the state of having impermanent understanding or wisdom

Compound type : tatpuruṣa (anitya+prajñatva)

• anitya – impermanent, transient, not eternal
  adjective
• prajñatva – the state or quality of being wise or understanding
  noun (neuter)
  Derived from prajñā with suffix -tva

सा (sā) - that (feminine, nominative singular)

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, it, this

तस्य (tasya) - to him, of him, his (masculine)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

एव (eva) - indeed, only, certainly

(indeclinable)

न (na) - not

(indeclinable)

रोचते (rocate) - is pleasing, is liked, is attractive

(verb)

3rd person , singular, middle, present (laṭ) of ruc

Present middle

3rd person singular, present tense, middle voice

Root: ruc (class 1)