महाभारतः mahābhārataḥ - book-5, chapter-35, verse-58

पूर्वे वयसि तत्कुर्याद्येन वृद्धः सुखं वसेत् ।
यावज्जीवेन तत्कुर्याद्येन प्रेत्य सुखं वसेत् ॥५८॥

58. pūrve vayasi tatkuryādyena vṛddhaḥ sukhaṁ vaset ,
yāvajjīvena tatkuryādyena pretya sukhaṁ vaset.

58. pūrve vayasi tat kuryāt yena vṛddhaḥ sukham vaset
yāvat-jīvena tat kuryāt yena pretya sukham vaset

58. During the early part of one's life, one should accomplish that by which one can live comfortably in old age. Throughout one's entire life, one should accomplish that by which one can live happily after death.

Words meanings summery:

• पूर्वे (pūrve) - in the former, in the early

• वयसि (vayasi) - in age, in the period of life

• तत् (tat) - that

• कुर्यात् (kuryāt) - one should do, may do, should make

• येन (yena) - by which, whereby

• वृद्धः (vṛddhaḥ) - old, aged; an old man

• सुखम् (sukham) - happily, comfortably

• वसेत् (vaset) - one may dwell, one may live

• यावत्-जीवेन (yāvat-jīvena) - as long as one lives, throughout one's life, lifelong

• तत् (tat) - that

• कुर्यात् (kuryāt) - one should do, may do, should make

• येन (yena) - by which, whereby

• प्रेत्य (pretya) - having died, after death

• सुखम् (sukham) - happily, comfortably

• वसेत् (vaset) - one may dwell, one may live

Words meanings and morphology

पूर्वे (pūrve) - in the former, in the early

(adjective)

Locative, neuter, singular of pūrva

pūrva - former, prior, earlier, first

वयसि (vayasi) - in age, in the period of life

(noun)

Locative, neuter, singular of vayas

vayas - age, period of life, youth

तत् (tat) - that

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

कुर्यात् (kuryāt) - one should do, may do, should make

(verb)

3rd person , singular, active, optative (vidhi liṅ) of kṛ

Root: kṛ (class 8)

येन (yena) - by which, whereby

(pronoun)

Instrumental, masculine, singular of yad

yad - who, which, what, that

वृद्धः (vṛddhaḥ) - old, aged; an old man

(adjective)

Nominative, masculine, singular of vṛddha

vṛddha - old, aged, grown; an old person

Past Passive Participle

Derived from root `vṛdh` (to grow).

Root: vṛdh (class 1)

सुखम् (sukham) - happily, comfortably

(indeclinable)

Note: Adverbial use of neuter accusative singular.

वसेत् (vaset) - one may dwell, one may live

(verb)

3rd person , singular, active, optative (vidhi liṅ) of vas

Root: vas (class 1)

यावत्-जीवेन (yāvat-jīvena) - as long as one lives, throughout one's life, lifelong

(indeclinable)

Compound type : avyayībhāva (yāvat+jīva)

• yāvat – as long as, as far as, to the extent that
  indeclinable
• jīva – life, living being, soul
  noun (masculine)

Note: Instrumental form used adverbially.

तत् (tat) - that

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

कुर्यात् (kuryāt) - one should do, may do, should make

(verb)

3rd person , singular, active, optative (vidhi liṅ) of kṛ

Root: kṛ (class 8)

येन (yena) - by which, whereby

(pronoun)

Instrumental, masculine, singular of yad

yad - who, which, what, that

प्रेत्य (pretya) - having died, after death

(indeclinable)

Absolutive (Gerund)

Derived from the root `i` (to go) with the prefixes `pra`.

Prefix: pra

Root: i (class 2)

सुखम् (sukham) - happily, comfortably

(indeclinable)

Note: Adverbial use of neuter accusative singular.

वसेत् (vaset) - one may dwell, one may live

(verb)

3rd person , singular, active, optative (vidhi liṅ) of vas

Root: vas (class 1)