महाभारतः mahābhārataḥ - book-3, chapter-189, verse-2

स्थापयित्वा स मर्यादाः स्वयम्भुविहिताः शुभाः ।
वनं पुण्ययशःकर्मा जरावान्संश्रयिष्यति ॥२॥

2. sthāpayitvā sa maryādāḥ svayambhuvihitāḥ śubhāḥ ,
vanaṁ puṇyayaśaḥkarmā jarāvānsaṁśrayiṣyati.

2. sthāpayitvā saḥ maryādāḥ svayambhuvihitāḥ śubhāḥ
vanam puṇyayaśaḥkarmā jarāvān saṁśrayiṣyati

2. Having established those auspicious social and moral boundaries (dharma) ordained by the Self-existent (Svayambhū), he, whose actions earned him sacred renown, will resort to the forest when aged.

Words meanings summery:

• स्थापयित्वा (sthāpayitvā) - having established (having established, having placed)

• सः (saḥ) - The Kalki avatar (he, that)

• मर्यादाः (maryādāḥ) - social and moral boundaries (dharma) (boundaries, limits, moral laws, institutions)

• स्वयम्भुविहिताः (svayambhuvihitāḥ) - ordained by the Self-existent (Svayambhū) (ordained by the self-existent, prescribed by Brahma)

• शुभाः (śubhāḥ) - auspicious (auspicious, beautiful, good)

• वनम् (vanam) - the forest (forest, wood, grove)

• पुण्ययशःकर्मा (puṇyayaśaḥkarmā) - whose actions earned him sacred renown (whose deeds are of sacred fame, whose fame is from meritorious actions)

• जरावान् (jarāvān) - when aged (aged, old, decrepit)

• संश्रयिष्यति (saṁśrayiṣyati) - will resort to (will resort to, will take refuge in, will depend on)

Words meanings and morphology

स्थापयित्वा (sthāpayitvā) - having established (having established, having placed)

(indeclinable)

Absolutive (Gerund)

Derived from causative root sthā (to stand) with prefix sthāp and suffix -tvā

Root: sthā (class 1)

Note: Connects to saṁśrayiṣyati.

सः (saḥ) - The Kalki avatar (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Subject of saṁśrayiṣyati.

मर्यादाः (maryādāḥ) - social and moral boundaries (dharma) (boundaries, limits, moral laws, institutions)

(noun)

Accusative, feminine, plural of maryādā

maryādā - boundary, limit, landmark, moral law, institution, rule of conduct, social order

Note: Object of sthāpayitvā.

स्वयम्भुविहिताः (svayambhuvihitāḥ) - ordained by the Self-existent (Svayambhū) (ordained by the self-existent, prescribed by Brahma)

(adjective)

Accusative, feminine, plural of svayambhuvihita

svayambhuvihita - prescribed/ordained by Svayambhū (Brahma)

Compound type : tatpuruṣa (svayambhū+vihita)

• svayambhū – the self-existent, Brahma
  proper noun (masculine)
  Root: bhū (class 1)
• vihita – enjoined, ordained, prescribed, made, arranged
  adjective (masculine)
  Past Passive Participle
  Derived from root dhā (to place, arrange) with prefix vi
  Prefix: vi
  Root: dhā (class 3)

Note: Qualifies maryādāḥ.

शुभाः (śubhāḥ) - auspicious (auspicious, beautiful, good)

(adjective)

Accusative, feminine, plural of śubha

śubha - auspicious, fortunate, good, beautiful, splendid

Note: Qualifies maryādāḥ.

वनम् (vanam) - the forest (forest, wood, grove)

(noun)

Accusative, neuter, singular of vana

vana - forest, wood, grove, thicket

Note: Object of saṁśrayiṣyati.

पुण्ययशःकर्मा (puṇyayaśaḥkarmā) - whose actions earned him sacred renown (whose deeds are of sacred fame, whose fame is from meritorious actions)

(adjective)

Nominative, masculine, singular of puṇyayaśaḥkarman

puṇyayaśaḥkarman - one whose deeds are meritorious and famous, having sacred renown through actions

Compound type : bahuvrīhi (puṇya+yaśas+karman)

• puṇya – meritorious, sacred, virtuous, good
  adjective (neuter)
• yaśas – fame, glory, renown
  noun (neuter)
• karman – action, deed, ritual, work (karma)
  noun (neuter)
  from root kṛ (to do, make)
  Root: kṛ (class 8)

Note: Qualifies saḥ.

जरावान् (jarāvān) - when aged (aged, old, decrepit)

(adjective)

Nominative, masculine, singular of jarāvat

jarāvat - possessed of old age, aged, decrepit

suffix -vat (possessing) to jarā (old age)

Note: Qualifies saḥ.

संश्रयिष्यति (saṁśrayiṣyati) - will resort to (will resort to, will take refuge in, will depend on)

(verb)

3rd person , singular, active, future (lṛṭ) of saṁśray

From root śrī (to resort to, serve) with prefix sam

Prefix: sam

Root: śrī (class 1)

Note: Main verb of the sentence.