महाभारतः mahābhārataḥ - book-11, chapter-22, verse-7

पुत्रशोकाभितप्तेन प्रतिज्ञां परिरक्षता ।
पाकशासनिना संख्ये वार्द्धक्षत्रिर्निपातितः ॥७॥

7. putraśokābhitaptena pratijñāṁ parirakṣatā ,
pākaśāsaninā saṁkhye vārddhakṣatrirnipātitaḥ.

7. putraśokābhitaptena pratijñām parirakṣatā
pākaśāsaninā saṃkhye vārddhakṣatriḥ nipātitaḥ

7. putraśokābhitaptena pratijñām parirakṣatā
pākaśāsaninā saṃkhye vārddhakṣatriḥ nipātitaḥ

7. Tormented by grief for his son and fulfilling his vow, the son of Indra (Arjuna) struck down Vārdhakṣatri (Jayadratha) in battle.

Words meanings summery:

• पुत्रशोकाभितप्तेन (putraśokābhitaptena) - by Arjuna, tormented by grief for his son Abhimanyu (by one afflicted by son's grief)

• प्रतिज्ञाम् (pratijñām) - Arjuna's vow to kill Jayadratha (promise, vow, engagement)

• परिरक्षता (parirakṣatā) - by Arjuna, keeping his vow (by one protecting, by one keeping)

• पाकशासनिना (pākaśāsaninā) - by Arjuna (by the son of Pakaśāsana (Indra), by Arjuna)

• संख्ये (saṁkhye) - in battle, in conflict

• वार्द्धक्षत्रिः (vārddhakṣatriḥ) - Jayadratha (son of Vṛddhakṣatra, Jayadratha)

• निपातितः (nipātitaḥ) - was struck down/killed (struck down, killed, felled)

Words meanings and morphology

पुत्रशोकाभितप्तेन (putraśokābhitaptena) - by Arjuna, tormented by grief for his son Abhimanyu (by one afflicted by son's grief)

(adjective)

Instrumental, masculine, singular of putraśokābhitapta

putraśokābhitapta - afflicted by the grief for a son

Compound type : bahuvrīhi (putra+śoka+abhitapta)

• putra – son
  noun (masculine)
• śoka – grief, sorrow, lamentation
  noun (masculine)
• abhitapta – tormented, afflicted, heated
  adjective (masculine)
  Past Passive Participle
  Derived from root 'tap' with upasarga 'abhi'
  Prefix: abhi
  Root: tap (class 1)

प्रतिज्ञाम् (pratijñām) - Arjuna's vow to kill Jayadratha (promise, vow, engagement)

(noun)

Accusative, feminine, singular of pratijñā

pratijñā - promise, vow, agreement, declaration

Prefix: prati

Root: jñā (class 9)

परिरक्षता (parirakṣatā) - by Arjuna, keeping his vow (by one protecting, by one keeping)

(adjective)

Instrumental, masculine, singular of parirakṣat

parirakṣat - protecting, preserving, keeping safe

Present Active Participle

Derived from root 'rakṣ' with upasarga 'pari'

Prefix: pari

Root: rakṣ (class 1)

पाकशासनिना (pākaśāsaninā) - by Arjuna (by the son of Pakaśāsana (Indra), by Arjuna)

(proper noun)

Instrumental, masculine, singular of pākaśāsanin

pākaśāsanin - son of Pakaśāsana (Indra), i.e., Arjuna

Derived from Pakaśāsana (Indra)

Note: Refers to Arjuna.

संख्ये (saṁkhye) - in battle, in conflict

(noun)

Locative, neuter, singular of saṃkhya

saṁkhya - battle, war, combat

वार्द्धक्षत्रिः (vārddhakṣatriḥ) - Jayadratha (son of Vṛddhakṣatra, Jayadratha)

(proper noun)

Nominative, masculine, singular of vārddhakṣatri

vārddhakṣatri - son of Vṛddhakṣatra, i.e., Jayadratha

Patronymic from Vṛddhakṣatra

Note: Refers to Jayadratha.

निपातितः (nipātitaḥ) - was struck down/killed (struck down, killed, felled)

(adjective)

Nominative, masculine, singular of nipātita

nipātita - struck down, felled, killed, caused to fall

Past Passive Participle

Causative of root 'pat' with upasarga 'ni'

Prefix: ni

Root: pat (class 1)

Note: Used as a finite verb in passive voice.