महाभारतः mahābhārataḥ - book-7, chapter-123, verse-21

दिष्ट्या संपादिता जिष्णो प्रतिज्ञा महती त्वया ।
दिष्ट्या च निहतः पापो वृद्धक्षत्रः सहात्मजः ॥२१॥

21. diṣṭyā saṁpāditā jiṣṇo pratijñā mahatī tvayā ,
diṣṭyā ca nihataḥ pāpo vṛddhakṣatraḥ sahātmajaḥ.

21. diṣṭyā saṁpāditā jiṣṇo pratijñā mahatī tvayā
diṣṭyā ca nihataḥ pāpaḥ vṛddhakṣatraḥ saha-ātmajaḥ

21. jiṣṇo diṣṭyā tvayā mahatī pratijñā saṁpāditā ca
diṣṭyā pāpaḥ vṛddhakṣatraḥ saha-ātmajaḥ nihataḥ

21. Fortunately, O Jiṣṇu (Arjuna), that great vow (pratijñā) was fulfilled by you. And fortunately, the wicked Vṛddhakṣatra was slain along with his son.

Words meanings summery:

• दिष्ट्या (diṣṭyā) - fortunately, by good luck, happily

• संपादिता (saṁpāditā) - accomplished, fulfilled, brought about

• जिष्णो (jiṣṇo) - O Arjuna! (an epithet of Arjuna) (O Jiṣṇu!)

• प्रतिज्ञा (pratijñā) - vow, promise, resolution

• महती (mahatī) - great, large, mighty

• त्वया (tvayā) - by you

• दिष्ट्या (diṣṭyā) - fortunately, by good luck, happily

• च (ca) - and, also, moreover

• निहतः (nihataḥ) - slain, killed, struck down

• पापः (pāpaḥ) - the wicked one (sinful, wicked, evil (person))

• वृद्धक्षत्रः (vṛddhakṣatraḥ) - Vṛddhakṣatra (father of Jayadratha or Jayadratha himself, referring to his royal lineage) (Vṛddhakṣatra (name of Jayadratha's father, or Jayadratha himself by extension))

• सह-आत्मजः (saha-ātmajaḥ) - along with his son

Words meanings and morphology

दिष्ट्या (diṣṭyā) - fortunately, by good luck, happily

(indeclinable)

Instrumental singular of diṣṭi (fate, fortune), used adverbially.

संपादिता (saṁpāditā) - accomplished, fulfilled, brought about

(adjective)

Nominative, feminine, singular of saṁpādita

saṁpādita - accomplished, fulfilled, brought about, completed

Past Passive Participle (causative)

Derived from root √pad (to go, to fall) with prefixes sam- and ā-, in its causative form.

Prefixes: sam+ā

Root: pad (class 4)

Note: Agrees with 'pratijñā'.

जिष्णो (jiṣṇo) - O Arjuna! (an epithet of Arjuna) (O Jiṣṇu!)

(proper noun)

Vocative, masculine, singular of jiṣṇu

jiṣṇu - victorious, conquering; an epithet of Indra, Vishnu, and Arjuna

Root: ji (class 1)

Note: Used to address Arjuna.

प्रतिज्ञा (pratijñā) - vow, promise, resolution

(noun)

Nominative, feminine, singular of pratijñā

pratijñā - vow, promise, declaration, resolution, agreement

Prefix: prati

Root: jñā (class 9)

Note: Subject of the passive construction.

महती (mahatī) - great, large, mighty

(adjective)

Nominative, feminine, singular of mahat

mahat - great, large, mighty, important

Note: Agrees with 'pratijñā'.

त्वया (tvayā) - by you

(pronoun)

Instrumental, singular of yuṣmad

yuṣmad - you

Note: Agent in the passive construction.

दिष्ट्या (diṣṭyā) - fortunately, by good luck, happily

(indeclinable)

Instrumental singular of diṣṭi (fate, fortune), used adverbially.

Note: Repeated for emphasis.

च (ca) - and, also, moreover

(indeclinable)

निहतः (nihataḥ) - slain, killed, struck down

(adjective)

Nominative, masculine, singular of nihata

nihata - slain, killed, struck down

Past Passive Participle

Derived from root √han (to strike, kill) with prefix ni-.

Prefix: ni

Root: han (class 2)

Note: Agrees with 'pāpaḥ vṛddhakṣatraḥ'.

पापः (pāpaḥ) - the wicked one (sinful, wicked, evil (person))

(adjective)

Nominative, masculine, singular of pāpa

pāpa - evil, bad, wicked, sinful; sin, evil deed

Note: Agrees with 'vṛddhakṣatraḥ'.

वृद्धक्षत्रः (vṛddhakṣatraḥ) - Vṛddhakṣatra (father of Jayadratha or Jayadratha himself, referring to his royal lineage) (Vṛddhakṣatra (name of Jayadratha's father, or Jayadratha himself by extension))

(proper noun)

Nominative, masculine, singular of vṛddhakṣatra

vṛddhakṣatra - name of Jayadratha's father; an ancient king; sometimes used to refer to Jayadratha himself

Compound type : karmadhāraya (vṛddha+kṣatra)

• vṛddha – old, aged, grown, increased
  adjective
  Past Passive Participle
  From root √vṛdh (to grow).
  Root: vṛdh (class 1)
• kṣatra – rule, dominion, power; the warrior class
  noun (neuter)

सह-आत्मजः (saha-ātmajaḥ) - along with his son

(adjective)

Nominative, masculine, singular of saha-ātmaja

saha-ātmaja - along with the son

Compound type : bahuvrīhi (saha+ātmaja)

• saha – with, along with
  indeclinable
• ātmaja – son (literally 'self-born' or 'born of the self/ātman')
  noun (masculine)
  From ātman + √jan (to be born).
  Root: jan (class 4)

Note: Agrees with 'vṛddhakṣatraḥ'.