महाभारतः mahābhārataḥ - book-7, chapter-6, verse-21

एवमेतौ महात्मानौ बलसेनाग्रगावुभौ ।
तावकानां मुखं कर्णः परेषां च धनंजयः ॥२१॥

21. evametau mahātmānau balasenāgragāvubhau ,
tāvakānāṁ mukhaṁ karṇaḥ pareṣāṁ ca dhanaṁjayaḥ.

21. evam etau mahātmānau balasenāgragau ubhau
tāvakānām mukham karṇaḥ pareṣām ca dhanaṃjayaḥ

21. evam etau ubhau mahātmānau balasenāgragau
tāvakānām karṇaḥ mukham ca pareṣām dhanaṃjayaḥ

21. Thus, these two great-souled individuals, both leading their armies, Karna was the chief (mukha) for your side, and Dhananjaya (Arjuna) for the enemies.

Words meanings summery:

• एवम् (evam) - thus, so, indeed, in this manner

• एतौ (etau) - Refers to Karna and Dhananjaya. (these two)

• महात्मानौ (mahātmānau) - Refers to Karna and Arjuna. (great-souled, noble, magnificent)

• बलसेनाग्रगौ (balasenāgragau) - Refers to Karna and Arjuna as commanders. (leaders of the army, those who go at the front of the army)

• उभौ (ubhau) - Refers to Karna and Arjuna. (both)

• तावकानाम् (tāvakānām) - Of the Kauravas (Duryodhana's side). (of your (side's), of your people, of yours)

• मुखम् (mukham) - The leader, the forefront. (face, mouth, chief, leader, front)

• कर्णः (karṇaḥ) - The great warrior Karna, son of Surya. (Karna (proper noun))

• परेषाम् (pareṣām) - Of the Pandavas. (of the enemies, of others)

• च (ca) - and, also

• धनंजयः (dhanaṁjayaḥ) - Arjuna, one of the Pandava brothers. (Dhananjaya (proper noun), conqueror of wealth)

Words meanings and morphology

एवम् (evam) - thus, so, indeed, in this manner

(indeclinable)

एतौ (etau) - Refers to Karna and Dhananjaya. (these two)

(pronoun)

Nominative, masculine, dual of etad

etad - this, these

Note: Agrees with mahātmānau, balasenāgragau, ubhau.

महात्मानौ (mahātmānau) - Refers to Karna and Arjuna. (great-souled, noble, magnificent)

(adjective)

Nominative, masculine, dual of mahātman

mahātman - great-souled, noble, magnanimous, (mahā: great, ātman: soul/self)

Compound type : Bahuvrīhi (mahā+ātman)

• mahā – great, large, mighty
  adjective (feminine)
• ātman – self, soul, spirit, essential nature
  noun (masculine)

Note: Agrees with etau, ubhau, balasenāgragau.

बलसेनाग्रगौ (balasenāgragau) - Refers to Karna and Arjuna as commanders. (leaders of the army, those who go at the front of the army)

(noun)

Nominative, masculine, dual of balasenāgraga

balasenāgraga - leader of the army, going at the front of the army

Compound type : Tatpuruṣa (bala+senā+agraga)

• bala – strength, power, army
  noun (neuter)
• senā – army, host, forces
  noun (feminine)
• agraga – going foremost, leader
  adjective (masculine)
  From agra (front) + ga (going, from root gam).
  Root: gam (class 1)

Note: Agrees with etau, ubhau, mahātmānau.

उभौ (ubhau) - Refers to Karna and Arjuna. (both)

(pronoun)

Nominative, masculine, dual of ubha

ubha - both

Note: Agrees with etau, mahātmānau, balasenāgragau.

तावकानाम् (tāvakānām) - Of the Kauravas (Duryodhana's side). (of your (side's), of your people, of yours)

(noun)

Genitive, masculine, plural of tāvaka

tāvaka - your, belonging to you, of your party

Derived from pronominal base yuṣmad.

Note: Refers to Duryodhana's army, addressed by Sanjaya to Dhritarashtra.

मुखम् (mukham) - The leader, the forefront. (face, mouth, chief, leader, front)

(noun)

Nominative, neuter, singular of mukha

mukha - mouth, face, chief, principal, front

Note: Predicative nominative with 'Karṇaḥ' (implied verb 'was').

कर्णः (karṇaḥ) - The great warrior Karna, son of Surya. (Karna (proper noun))

(proper noun)

Nominative, masculine, singular of karṇa

karṇa - Karna (proper noun), ear

Note: Subject of the first clause.

परेषाम् (pareṣām) - Of the Pandavas. (of the enemies, of others)

(noun)

Genitive, masculine, plural of para

para - other, enemy, supreme, highest

Note: Connected to implied 'mukham' for Dhananjaya.

च (ca) - and, also

(indeclinable)

धनंजयः (dhanaṁjayaḥ) - Arjuna, one of the Pandava brothers. (Dhananjaya (proper noun), conqueror of wealth)

(proper noun)

Nominative, masculine, singular of dhanaṃjaya

dhanaṁjaya - conqueror of wealth (epithet of Arjuna), fire

Compound type : Upapada Tatpuruṣa (dhana+jaya)

• dhana – wealth, riches, money
  noun (neuter)
• jaya – victory, conquering, conqueror (as suffix)
  noun (masculine)
  From root ji- (to conquer).
  Root: ji (class 1)

Note: Subject of the second clause (implied verb 'was').