महाभारतः mahābhārataḥ - book-12, chapter-174, verse-18

दीर्घकालेन तपसा सेवितेन तपोवने ।
धर्मनिर्धूतपापानां संसिध्यन्ते मनोरथाः ॥१८॥

18. dīrghakālena tapasā sevitena tapovane ,
dharmanirdhūtapāpānāṁ saṁsidhyante manorathāḥ.

18. dīrghakālena tapasā sevitena tapovane
dharmanirdhūtapāpānām saṃsidhyante manorathāḥ

18. dīrghakālena tapasā sevitena tapovane
dharmanirdhūtapāpānām manorathāḥ saṃsidhyante

18. For those whose wrongdoings have been purged by their adherence to natural law (dharma) and who have practiced austerity (tapas) for a long time in a forest hermitage, their aspirations are indeed fulfilled.

Words meanings summery:

• दीर्घकालेन (dīrghakālena) - for a long time (by a long time, over a long period)

• तपसा (tapasā) - by austerity (tapas) (by austerity, by penance, by religious devotion)

• सेवितेन (sevitena) - by that which is practiced (referring to `tapas`) (by that which is served, practiced, frequented)

• तपोवने (tapovane) - in a forest hermitage (in a hermitage, in a forest of austerities)

• धर्मनिर्धूतपापानाम् (dharmanirdhūtapāpānām) - of those whose wrongdoings have been purged by natural law (dharma) (of those whose sins have been purged by `dharma`)

• संसिध्यन्ते (saṁsidhyante) - are fulfilled (are accomplished, succeed, become perfect)

• मनोरथाः (manorathāḥ) - aspirations (desires, wishes, aspirations)

Words meanings and morphology

दीर्घकालेन (dīrghakālena) - for a long time (by a long time, over a long period)

(noun)

Instrumental, masculine, singular of dīrghakāla

dīrghakāla - long time, prolonged period

Compound of `dīrgha` (long) and `kāla` (time).

तपसा (tapasā) - by austerity (tapas) (by austerity, by penance, by religious devotion)

(noun)

Instrumental, neuter, singular of tapas

tapas - austerity (tapas), penance, heat, religious fervor

Root: tap

सेवितेन (sevitena) - by that which is practiced (referring to `tapas`) (by that which is served, practiced, frequented)

(adjective)

Instrumental, neuter, singular of sevita

sevita - served, frequented, practiced, devoted to, honored

Past Passive Participle

Derived from root `sev`.

Root: sev (class 1)

Note: Agrees with `tapasā` (neuter instrumental singular).

तपोवने (tapovane) - in a forest hermitage (in a hermitage, in a forest of austerities)

(noun)

Locative, neuter, singular of tapovana

tapovana - hermitage, forest of austerities

Compound of `tapas` (austerity) and `vana` (forest).

धर्मनिर्धूतपापानाम् (dharmanirdhūtapāpānām) - of those whose wrongdoings have been purged by natural law (dharma) (of those whose sins have been purged by `dharma`)

(adjective)

Genitive, masculine, plural of dharmanirdhūtapāpa

dharmanirdhūtapāpa - having sins purged by `dharma`

Compound type : bahuvrīhi (dharma+nirdhūta+pāpa)

• dharma – natural law (dharma), intrinsic nature, righteousness, constitution
  noun (masculine)
  Root: dhṛ
• nirdhūta – shaken off, cleansed, removed, dispelled
  adjective
  Past Passive Participle
  From root `dhū` with prefix `nir`.
  Prefix: nir
  Root: dhū (class 5)
• pāpa – sin, evil, wrong, bad, wicked
  noun (neuter)

संसिध्यन्ते (saṁsidhyante) - are fulfilled (are accomplished, succeed, become perfect)

(verb)

3rd person , plural, middle, present (laṭ) of saṃsidh

Present tense, 3rd person plural (ātmanepada)

From root `sidh` with prefix `sam`. Class 4 verb, middle voice.

Prefix: sam

Root: sidh (class 4)

मनोरथाः (manorathāḥ) - aspirations (desires, wishes, aspirations)

(noun)

Nominative, masculine, plural of manoratha

manoratha - wish, desire, aspiration, object of desire

Compound of `manas` (mind) and `ratha` (chariot/desire).