महाभारतः mahābhārataḥ - book-11, chapter-13, verse-17

यत्तु कर्माकरोद्भीमो वासुदेवस्य पश्यतः ।
दुर्योधनं समाहूय गदायुद्धे महामनाः ॥१७॥

17. yattu karmākarodbhīmo vāsudevasya paśyataḥ ,
duryodhanaṁ samāhūya gadāyuddhe mahāmanāḥ.

17. yat tu karma akarot bhīmaḥ vāsudevasya paśyataḥ
duryodhanam samāhūya gadāyuddhe mahāmanāḥ

17. tu yat karma mahāmanāḥ bhīmaḥ vāsudevasya paśyataḥ,
duryodhanam gadāyuddhe samāhūya,
akarot.

17. But the deed that the great-souled Bhīma performed, having challenged Duryodhana to a mace-fight, while Vāsudeva (Kṛṣṇa) was watching...

Words meanings summery:

• यत् (yat) - which, that

• तु (tu) - but, indeed, however

• कर्म (karma) - the specific act of fighting (action, deed, work, ritual, fate, effect of actions (karma))

• अकरोत् (akarot) - he did, he performed

• भीमः (bhīmaḥ) - Bhīma (name of a Pāṇḍava)

• वासुदेवस्य (vāsudevasya) - of Vāsudeva (Kṛṣṇa)

• पश्यतः (paśyataḥ) - while seeing, of one seeing, watching

• दुर्योधनम् (duryodhanam) - Duryodhana (eldest Kaurava prince)

• समाहूय (samāhūya) - having summoned, having challenged

• गदायुद्धे (gadāyuddhe) - in the mace-fight

• महामनाः (mahāmanāḥ) - great-souled, magnanimous, noble-minded

Words meanings and morphology

यत् (yat) - which, that

(pronoun)

Nominative, neuter, singular of yad

yad - which, that (relative pronoun)

तु (tu) - but, indeed, however

(indeclinable)

कर्म (karma) - the specific act of fighting (action, deed, work, ritual, fate, effect of actions (karma))

(noun)

Accusative, neuter, singular of karma

karma - action, deed, work, ritual, fate, effect of actions (karma)

Derived from root kṛ (to do) with manin affix

Root: kṛ (class 8)

Note: Object of 'akarot'.

अकरोत् (akarot) - he did, he performed

(verb)

3rd person , singular, active, past perfect (luṅ) of kṛ

Aorist

3rd person singular, active voice

Root: kṛ (class 8)

भीमः (bhīmaḥ) - Bhīma (name of a Pāṇḍava)

(proper noun)

Nominative, masculine, singular of bhīma

bhīma - Bhīma (name of a Pāṇḍava), terrible, formidable

Root: bhī (class 3)

वासुदेवस्य (vāsudevasya) - of Vāsudeva (Kṛṣṇa)

(proper noun)

Genitive, masculine, singular of vāsudeva

vāsudeva - Kṛṣṇa (son of Vasudeva)

Formed from Vasudeva + aṇ affix

Note: Possessive with 'paśyataḥ'.

पश्यतः (paśyataḥ) - while seeing, of one seeing, watching

(adjective)

Genitive, masculine, singular of paśyat

paśyat - seeing, watching

Present Active Participle

Derived from root dṛś (paśya) with śatṛ affix

Root: dṛś (class 1)

दुर्योधनम् (duryodhanam) - Duryodhana (eldest Kaurava prince)

(proper noun)

Accusative, masculine, singular of duryodhana

duryodhana - Duryodhana (eldest Kaurava prince)

Note: Object of 'samāhūya'.

समाहूय (samāhūya) - having summoned, having challenged

(indeclinable)

Absolutive (gerund)

Derived from root hvā (to call) with upasargas sam and ā, and lyap affix

Prefixes: sam+ā

Root: hvā (class 1)

गदायुद्धे (gadāyuddhe) - in the mace-fight

(noun)

Locative, neuter, singular of gadāyuddha

gadāyuddha - mace-fight

Compound type : tatpurusha (gadā+yuddha)

• gadā – mace, club
  noun (feminine)
• yuddha – fight, battle
  noun (neuter)
  Past Passive Participle (used as noun)
  Derived from root yudh
  Root: yudh (class 4)

महामनाः (mahāmanāḥ) - great-souled, magnanimous, noble-minded

(adjective)

Nominative, masculine, singular of mahāmanas

mahāmanas - great-souled, magnanimous, noble-minded

Compound type : bahuvrihi (mahā+manas)

• mahā – great, large
  adjective
  Stem form of 'mahat'.
• manas – mind, intellect, soul
  noun (neuter)
  Root: man (class 4)

Note: Qualifies 'bhīmaḥ'.