महाभारतः mahābhārataḥ - book-15, chapter-12, verse-18

सर्वथैव महाराज शरीरं धारयेदिह ।
प्रेत्येह चैव कर्तव्यमात्मनिःश्रेयसं परम् ॥१८॥

18. sarvathaiva mahārāja śarīraṁ dhārayediha ,
pretyeha caiva kartavyamātmaniḥśreyasaṁ param.

18. sarvathā eva mahārāja śarīram dhārayet iha pretya
iha ca eva kartavyam ātmaniḥśreyasam param

18. mahārāja iha sarvathā eva śarīram dhārayet ca
iha pretya eva param ātmaniḥśreyasam kartavyam

18. O great king, one should certainly sustain the body in this world. Both in this life and after death, the ultimate well-being (ātmaniḥśreyasa) of the self (ātman) must be achieved.

Words meanings summery:

• सर्वथा (sarvathā) - in every way, certainly (in every way, by all means, certainly)

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

• महाराज (mahārāja) - O great king (vocative) (great king, O great king)

• शरीरम् (śarīram) - the body (body)

• धारयेत् (dhārayet) - one should maintain, sustain (one should maintain, one should support, one should bear)

• इह (iha) - in this world (here, in this world)

• प्रेत्य (pretya) - after death (implying the next world) (having departed, after death, in the next world)

• इह (iha) - in this life (contrasting with 'pretya') (here, in this world)

• च (ca) - and (and, also)

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

• कर्तव्यम् (kartavyam) - must be done, is to be achieved (ought to be done, duty, obligation)

• आत्मनिःश्रेयसम् (ātmaniḥśreyasam) - the ultimate well-being (ātmaniḥśreyasa) (ultimate welfare of the self, highest good for oneself, liberation)

• परम् (param) - ultimate, supreme (supreme, ultimate, highest)

Words meanings and morphology

सर्वथा (sarvathā) - in every way, certainly (in every way, by all means, certainly)

(indeclinable)

from sarva + thāl

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

(indeclinable)

महाराज (mahārāja) - O great king (vocative) (great king, O great king)

(noun)

Vocative, masculine, singular of mahārāja

mahārāja - a great king, a sovereign

Compound type : karmadhāraya (mahat+rājan)

• mahat – great, large, mighty
  adjective (neuter)
• rājan – king, ruler
  noun (masculine)

शरीरम् (śarīram) - the body (body)

(noun)

Accusative, neuter, singular of śarīra

śarīra - body, physical form

धारयेत् (dhārayet) - one should maintain, sustain (one should maintain, one should support, one should bear)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of dhṛ

Optative (causative)

from dhṛ (causative) + vidhiliṅ

Root: dhṛ (class 1)

इह (iha) - in this world (here, in this world)

(indeclinable)

प्रेत्य (pretya) - after death (implying the next world) (having departed, after death, in the next world)

(indeclinable)

Absolutive

from pra-i + lyap

Prefix: pra

Root: i (class 2)

Note: Often used to refer to 'the hereafter'.

इह (iha) - in this life (contrasting with 'pretya') (here, in this world)

(indeclinable)

Note: Paired with 'pretya' to mean 'both in this world and the next'.

च (ca) - and (and, also)

(indeclinable)

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

(indeclinable)

कर्तव्यम् (kartavyam) - must be done, is to be achieved (ought to be done, duty, obligation)

(adjective)

Nominative, neuter, singular of kartavya

kartavya - to be done, fit to be done, duty, obligation

Gerundive

from kṛ + tavya

Root: kṛ (class 8)

आत्मनिःश्रेयसम् (ātmaniḥśreyasam) - the ultimate well-being (ātmaniḥśreyasa) (ultimate welfare of the self, highest good for oneself, liberation)

(noun)

Nominative, neuter, singular of ātmaniḥśreyasa

ātmaniḥśreyasa - the highest good for oneself, self-welfare, ultimate welfare of the soul

Compound type : tatpurusha (ātman+niḥśreyasa)

• ātman – self, soul, spirit, essence
  noun (masculine)
• niḥśreyasa – supreme beatitude, final emancipation, ultimate good, highest welfare
  noun (neuter)

परम् (param) - ultimate, supreme (supreme, ultimate, highest)

(adjective)

Nominative, neuter, singular of para

para - supreme, highest, ultimate, distant, other