महाभारतः mahābhārataḥ - book-13, chapter-64, verse-4

अर्धं पापस्य हरति पुरुषस्येह कर्मणः ।
कूपः प्रवृत्तपानीयः सुप्रवृत्तश्च नित्यशः ॥४॥

4. ardhaṁ pāpasya harati puruṣasyeha karmaṇaḥ ,
kūpaḥ pravṛttapānīyaḥ supravṛttaśca nityaśaḥ.

4. ardham pāpasya harati puruṣasya iha karmaṇaḥ
kūpaḥ pravṛttapānīyaḥ supravṛttaḥ ca nityaśaḥ

4. iha nityaśaḥ pravṛttapānīyaḥ ca supravṛttaḥ
kūpaḥ puruṣasya pāpasya karmaṇaḥ ardham harati

4. A well that always provides continuously flowing, abundant water removes half of a person's (puruṣa) negative actions (karma) in this world.

Words meanings summery:

• अर्धम् (ardham) - half (half, part, portion)

• पापस्य (pāpasya) - of negative actions, of sin (of sin, of evil, of wickedness)

• हरति (harati) - removes, takes away (he carries, he takes away, he removes, he steals)

• पुरुषस्य (puruṣasya) - of a person (puruṣa) (of a person, of a man, of the supreme cosmic person)

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

• कर्मणः (karmaṇaḥ) - of actions (karma) (of action, of deed, of karma)

• कूपः (kūpaḥ) - a well (a well, a pit)

• प्रवृत्तपानीयः (pravṛttapānīyaḥ) - having continuously flowing water

• सुप्रवृत्तः (supravṛttaḥ) - well-flowing, abundantly flowing (well-flowing, flowing abundantly)

• च (ca) - and (and, also)

• नित्यशः (nityaśaḥ) - always, constantly (constantly, always, perpetually)

Words meanings and morphology

अर्धम् (ardham) - half (half, part, portion)

(noun)

Accusative, neuter, singular of ardha

ardha - half, part, portion, side

a-stem neuter noun

पापस्य (pāpasya) - of negative actions, of sin (of sin, of evil, of wickedness)

(noun)

Genitive, neuter, singular of pāpa

pāpa - sin, evil, wicked, bad deed

a-stem neuter/masculine noun

Note: Governs 'karmaṇaḥ' and describes the nature of the action.

हरति (harati) - removes, takes away (he carries, he takes away, he removes, he steals)

(verb)

3rd person , singular, active, present (laṭ) of hṛ

Root in 1st conjugation

Root: hṛ (class 1)

Note: Main verb of the first clause.

पुरुषस्य (puruṣasya) - of a person (puruṣa) (of a person, of a man, of the supreme cosmic person)

(noun)

Genitive, masculine, singular of puruṣa

puruṣa - man, person, human being, spirit, soul, the supreme cosmic person

a-stem masculine noun

Note: Possessive genitive, 'of a person'.

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

(indeclinable)

Adverb of place/time.

कर्मणः (karmaṇaḥ) - of actions (karma) (of action, of deed, of karma)

(noun)

Genitive, neuter, singular of karman

karman - action, deed, work, karma (the law of cause and effect)

n-stem neuter noun. Derived from root KṚ (to do, make).

Root: kṛ (class 8)

Note: Governed by pāpasya, 'of sinful action'.

कूपः (kūpaḥ) - a well (a well, a pit)

(noun)

Nominative, masculine, singular of kūpa

kūpa - well, pit, hole

a-stem masculine noun

Note: Subject of harati.

प्रवृत्तपानीयः (pravṛttapānīyaḥ) - having continuously flowing water

(adjective)

Nominative, masculine, singular of pravṛttapānīya

pravṛttapānīya - having continuously flowing water

pravṛtta (flowing, produced) + pānīya (water)

Compound type : bahuvrihi (pravṛtta+pānīya)

• pravṛtta – flowed, occurred, existed, happened, active, engaged
  adjective (neuter)
  Past Passive Participle
  Root VṚT (to turn, to be, to exist) with prefix PRA + ta suffix
  Prefix: pra
  Root: vṛt (class 1)
• pānīya – water, drinkable, potable
  noun (neuter)
  Gerundive
  Root PĀ (to drink) + anīya suffix
  Root: pā (class 1)

Note: Qualifies kūpaḥ.

सुप्रवृत्तः (supravṛttaḥ) - well-flowing, abundantly flowing (well-flowing, flowing abundantly)

(adjective)

Nominative, masculine, singular of supravṛtta

supravṛtta - well-flowing, flowing abundantly, well-begun

Past Passive Participle

su (well) + pra (forth, continuously) + vṛtta (flowed, turned)

Compound type : karmadharaya (su+pravṛtta)

• su – good, well, excellent
  indeclinable
  Prefix indicating 'good' or 'well'
• pravṛtta – flowed, occurred, existed, happened, active, engaged
  adjective (neuter)
  Past Passive Participle
  Root VṚT (to turn, to be, to exist) with prefix PRA + ta suffix
  Prefix: pra
  Root: vṛt (class 1)

Note: Qualifies kūpaḥ, further emphasizing the constant and good flow of water.

च (ca) - and (and, also)

(indeclinable)

नित्यशः (nityaśaḥ) - always, constantly (constantly, always, perpetually)

(indeclinable)

Derived from nitya (constant) + śas suffix (indicating manner/frequency)

Note: Modifies the descriptions of the well's water and implied action of removing sin.