महाभारतः mahābhārataḥ - book-9, chapter-60, verse-35

कुर्वाणश्चोत्तमं कर्म कर्णः पार्थजिगीषया ।
व्यंसनेनाश्वसेनस्य पन्नगेन्द्रसुतस्य वै ॥३५॥

35. kurvāṇaścottamaṁ karma karṇaḥ pārthajigīṣayā ,
vyaṁsanenāśvasenasya pannagendrasutasya vai.

35. kurvāṇaḥ ca uttamam karma karṇaḥ pārthajigīṣayā
vyaṃsanena aśvasenasya pannagendrasutasya vai

35. karṇaḥ pārthajigīṣayā uttamam karma kurvāṇaḥ ca
pannagendrasutasya aśvasenasya vyaṃsanena vai

35. And Karna, while performing his supreme deed (karma) with the desire to conquer Arjuna, was indeed afflicted by the misfortune involving Ashvasena, the son of the king of serpents.

Words meanings summery:

• कुर्वाणः (kurvāṇaḥ) - performing; doing

• च (ca) - and; also

• उत्तमम् (uttamam) - supreme; excellent; best

• कर्म (karma) - deed; action; work (karma)

• कर्णः (karṇaḥ) - Karna (proper name)

• पार्थजिगीषया (pārthajigīṣayā) - by the desire to conquer Arjuna

• व्यंसनेन (vyaṁsanena) - by the misfortune; by the calamity; by the downfall

• अश्वसेनस्य (aśvasenasya) - of Ashvasena, the Nāga (serpent) son of Takṣaka (of Ashvasena)

• पन्नगेन्द्रसुतस्य (pannagendrasutasya) - of the son of the king of serpents

• वै (vai) - indeed; verily; surely

Words meanings and morphology

कुर्वाणः (kurvāṇaḥ) - performing; doing

(adjective)

Nominative, masculine, singular of kurvāṇa

kurvāṇa - doing, performing, making

Present Middle Participle

From root √kṛ (to do, make), 8th class, atmanepada

Root: kṛ (class 8)

च (ca) - and; also

(indeclinable)

उत्तमम् (uttamam) - supreme; excellent; best

(adjective)

Accusative, neuter, singular of uttama

uttama - highest, best, excellent, supreme

कर्म (karma) - deed; action; work (karma)

(noun)

Accusative, neuter, singular of karma

karma - action, deed, work, ritual action (karma)

From root √kṛ (to do, make)

Root: kṛ (class 8)

कर्णः (karṇaḥ) - Karna (proper name)

(proper noun)

Nominative, masculine, singular of karṇa

karṇa - Karna (name of a prominent warrior in the Mahabharata)

पार्थजिगीषया (pārthajigīṣayā) - by the desire to conquer Arjuna

(noun)

Instrumental, feminine, singular of pārthajigīṣā

pārthajigīṣā - desire to conquer Arjuna

Compound type : tatpuruṣa (pārtha+jigīṣā)

• pārtha – son of Pṛthā (epithet for Arjuna)
  proper noun (masculine)
  Patronymic from Pṛthā
• jigīṣā – desire to conquer, ambition
  noun (feminine)
  Desiderative noun
  Desiderative nominal form from root √ji (to conquer)
  Root: ji (class 1)

व्यंसनेन (vyaṁsanena) - by the misfortune; by the calamity; by the downfall

(noun)

Instrumental, neuter, singular of vyasana

vyasana - misfortune, calamity, downfall, vice

अश्वसेनस्य (aśvasenasya) - of Ashvasena, the Nāga (serpent) son of Takṣaka (of Ashvasena)

(proper noun)

Genitive, masculine, singular of aśvasena

aśvasena - Ashvasena (name of a Nāga, son of Takṣaka)

पन्नगेन्द्रसुतस्य (pannagendrasutasya) - of the son of the king of serpents

(noun)

Genitive, masculine, singular of pannagendrasuta

pannagendrasuta - son of the lord of serpents

Compound type : tatpuruṣa (pannaga+indra+suta)

• pannaga – serpent, snake
  noun (masculine)
• indra – chief, lord, king, Indra
  noun (masculine)
• suta – son
  noun (masculine)
  Past Passive Participle
  From root √sū (to give birth), often used as a noun 'son'
  Root: sū (class 2)

वै (vai) - indeed; verily; surely

(indeclinable)