योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-54, verse-38

नश्यति क्रियया पुत्र पुरुषस्य तथा मलम् ।
नश्यत्येव न संदेहस्तस्मादुद्यमवान्भव ॥ ३८ ॥

naśyati kriyayā putra puruṣasya tathā malam ,
naśyatyeva na saṃdehastasmādudyamavānbhava 38

38. naśyati kriyayā putra puruṣasya tathā malam
naśyati eva na saṃdehaḥ tasmāt udyamavān bhava

38. putra,
puruṣasya malam kriyayā naśyati,
tathā eva naśyati.
na saṃdehaḥ.
tasmāt udyamavān bhava.

38. O son, just as the impurity of a person (puruṣa) is destroyed by action, so too it certainly perishes; there is no doubt about this. Therefore, be diligent!

Words meanings summery:

• नश्यति (naśyati) - perishes, is destroyed

• क्रियया (kriyayā) - by action, by activity, by effort

• पुत्र (putra) - O son

• पुरुषस्य (puruṣasya) - of a person, of a man, of a human being

• तथा (tathā) - thus, so, similarly

• मलम् (malam) - impurity, dirt, blemish, sin

• नश्यति (naśyati) - perishes, is destroyed

• एव (eva) - indeed, certainly, only

• न (na) - not, no

• संदेहः (saṁdehaḥ) - doubt, uncertainty

• तस्मात् (tasmāt) - therefore, from that

• उद्यमवान् (udyamavān) - diligent, energetic, striving

• भव (bhava) - be, become

Words meanings and morphology

नश्यति (naśyati) - perishes, is destroyed

(verb)

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

Present active indicative

4th class (divādi) verb, parasmaipada

Root: naś (class 4)

क्रियया (kriyayā) - by action, by activity, by effort

(noun)

Instrumental, feminine, singular of kriyā

kriyā - action, activity, performance, effort

From √kṛ (to do) + suffix ya (fem. ā)

Root: kṛ (class 8)

पुत्र (putra) - O son

(noun)

Vocative, masculine, singular of putra

putra - son, child

पुरुषस्य (puruṣasya) - of a person, of a man, of a human being

(noun)

Genitive, masculine, singular of puruṣa

puruṣa - person, man, male, the Self, the cosmic person (Puruṣa)

Root: pṛ

तथा (tathā) - thus, so, similarly

(indeclinable)

मलम् (malam) - impurity, dirt, blemish, sin

(noun)

Nominative, neuter, singular of mala

mala - dirt, impurity, stain, sin, defect

Note: Subject of 'naśyati'.

नश्यति (naśyati) - perishes, is destroyed

(verb)

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

Present active indicative

4th class (divādi) verb, parasmaipada

Root: naś (class 4)

एव (eva) - indeed, certainly, only

(indeclinable)

न (na) - not, no

(indeclinable)

संदेहः (saṁdehaḥ) - doubt, uncertainty

(noun)

Nominative, masculine, singular of saṃdeha

saṁdeha - doubt, uncertainty, suspicion

From sam- + √dih (to smear, to be confused)

Prefix: sam

Root: dih (class 4)

तस्मात् (tasmāt) - therefore, from that

(indeclinable)

Ablative singular of tad, functioning as an indeclinable 'therefore'.

Note: Functions as an adverbial 'therefore'.

उद्यमवान् (udyamavān) - diligent, energetic, striving

(adjective)

Nominative, masculine, singular of udyamavat

udyamavat - possessing effort/diligence, striving, active

From ud- + √yam (to strive) + matup suffix. Nominative singular masculine.

Prefix: ud

Root: yam (class 1)

भव (bhava) - be, become

(verb)

2nd person , singular, active, imperative (loṭ) of bhū

Imperative active

1st class verb, parasmaipada, imperative 2nd person singular

Root: bhū (class 1)