महाभारतः mahābhārataḥ - book-7, chapter-156, verse-28

ये हि धर्मस्य लोप्तारो वध्यास्ते मम पाण्डव ।
धर्मसंस्थापनार्थं हि प्रतिज्ञैषा ममाव्यया ॥२८॥

28. ye hi dharmasya loptāro vadhyāste mama pāṇḍava ,
dharmasaṁsthāpanārthaṁ hi pratijñaiṣā mamāvyayā.

28. ye hi dharmasya loptāraḥ vadhyāḥ te mama pāṇḍava
dharmasaṃsthāpanārtham hi pratijñā eṣā mama avyayā

28. ye hi dharmasya loptāraḥ te mama vadhyāḥ pāṇḍava
hi dharmasaṃsthāpanārtham mama eṣā avyayā pratijñā

28. Indeed, those who are violators of the natural law (dharma) are to be slain by me, O Pāṇḍava. For the re-establishment of the natural law (dharma), this vow of mine is indeed imperishable.

Words meanings summery:

• ये (ye) - who, which (plural)

• हि (hi) - indeed, surely, because, for

• धर्मस्य (dharmasya) - of the natural law (dharma) (of natural law, of constitution, of righteousness)

• लोप्तारः (loptāraḥ) - destroyers, violators, obstructors

• वध्याः (vadhyāḥ) - to be killed, punishable by death, fit for slaughter

• ते (te) - they (referring to `loptāraḥ`) (they (nominative plural))

• मम (mama) - my, of me

• पाण्डव (pāṇḍava) - O son of Pāṇḍu, O Pāṇḍava

• धर्मसंस्थापनार्थम् (dharmasaṁsthāpanārtham) - for the re-establishment of the natural law (dharma) (for the purpose of establishing natural law)

• हि (hi) - indeed, surely, because, for

• प्रतिज्ञा (pratijñā) - vow, promise, declaration

• एषा (eṣā) - this (feminine)

• मम (mama) - my, of me

• अव्यया (avyayā) - imperishable, immutable, indestructible

Words meanings and morphology

ये (ye) - who, which (plural)

(pronoun)

Nominative, masculine, plural of yad

yad - who, which, what

Note: Relative pronoun.

हि (hi) - indeed, surely, because, for

(indeclinable)

Note: Particle emphasizing certainty or cause.

धर्मस्य (dharmasya) - of the natural law (dharma) (of natural law, of constitution, of righteousness)

(noun)

Genitive, masculine, singular of dharma

dharma - natural law, constitution, righteousness, duty, virtue, intrinsic nature

Root: dhṛ (class 1)

लोप्तारः (loptāraḥ) - destroyers, violators, obstructors

(noun)

Nominative, masculine, plural of loptṛ

loptṛ - destroyer, violator, obstructor, one who causes to disappear

agent noun

Derived from root 'lup' (to break, destroy) + -tṛ suffix.

Root: lup (class 6)

Note: Agent noun from √lup.

वध्याः (vadhyāḥ) - to be killed, punishable by death, fit for slaughter

(adjective)

Nominative, masculine, plural of vadhya

vadhya - to be killed, fit to be killed, punishable by death

gerundive

Derived from root 'vadh' (to strike, kill) + -ya suffix.

Root: vadh (class 1)

Note: Gerundive, implies obligation or fitness.

ते (te) - they (referring to `loptāraḥ`) (they (nominative plural))

(pronoun)

Nominative, masculine, plural of tad

tad - that, he, she, it

Note: Demonstrative/personal pronoun.

मम (mama) - my, of me

(pronoun)

Genitive, singular of aham

aham - I

Note: Possessive pronoun of 'I'.

पाण्डव (pāṇḍava) - O son of Pāṇḍu, O Pāṇḍava

(proper noun)

Vocative, masculine, singular of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, son of Pāṇḍu

Derived from Pāṇḍu + -a (patronymic suffix).

Note: Addressed to Arjuna or any of the Pāṇḍavas.

धर्मसंस्थापनार्थम् (dharmasaṁsthāpanārtham) - for the re-establishment of the natural law (dharma) (for the purpose of establishing natural law)

(noun)

Accusative, neuter, singular of dharmasaṃsthāpanārtha

dharmasaṁsthāpanārtha - for the sake of establishing natural law

Compound type : tatpuruṣa (dharma+saṃsthāpana+artha)

• dharma – natural law, constitution, righteousness, duty
  noun (masculine)
  Root: dhṛ (class 1)
• saṃsthāpana – establishment, re-establishment, settling down
  noun (neuter)
  causative verbal noun
  Derived from root 'sthā' (to stand) with prefix 'sam-' and causative suffix '-pi', then noun suffix '-ana'.
  Prefix: sam
  Root: sthā (class 1)
• artha – purpose, aim, meaning, wealth
  noun (masculine)

Note: Used adverbially to indicate purpose.

हि (hi) - indeed, surely, because, for

(indeclinable)

Note: Particle emphasizing certainty or cause.

प्रतिज्ञा (pratijñā) - vow, promise, declaration

(noun)

Nominative, feminine, singular of pratijñā

pratijñā - vow, promise, declaration, undertaking

Derived from root 'jñā' (to know) with prefix 'prati-'.

Prefix: prati

Root: jñā (class 9)

एषा (eṣā) - this (feminine)

(pronoun)

Nominative, feminine, singular of etad

etad - this

Note: Demonstrative pronoun referring to `pratijñā`.

मम (mama) - my, of me

(pronoun)

Genitive, singular of aham

aham - I

Note: Possessive pronoun of 'I'.

अव्यया (avyayā) - imperishable, immutable, indestructible

(adjective)

Nominative, feminine, singular of avyaya

avyaya - imperishable, immutable, indestructible

Negation of 'vyaya' (perishable, spending). 'a-' (negation) + 'vyaya'.

Compound type : nañ-tatpuruṣa (a+vyaya)

• a – not, un-
  indeclinable
• vyaya – perishable, expense, decay, loss
  noun (masculine)
  Derived from root 'ī' (to go) with prefix 'vi-' and suffix '-aya'.
  Prefix: vi
  Root: ī (class 2)

Note: Qualifies `pratijñā`.