महाभारतः mahābhārataḥ - book-6, chapter-86, verse-75

अजानन्नर्जुनश्चापि निहतं पुत्रमौरसम् ।
जघान समरे शूरान्राज्ञस्तान्भीष्मरक्षिणः ॥७५॥

75. ajānannarjunaścāpi nihataṁ putramaurasam ,
jaghāna samare śūrānrājñastānbhīṣmarakṣiṇaḥ.

75. ajānan arjunaḥ ca api nihataṃ putram aurasam
jaghāna samare śūrān rājñaḥ tān bhīṣmarakṣiṇaḥ

75. arjunaḥ api nihataṃ aurasam putram ajānan ca
samare bhīṣmarakṣiṇaḥ tān śūrān rājñaḥ jaghāna

75. Arjuna, not knowing that his own legitimate son had been slain, also killed those brave kings who were protectors of Bhishma in battle.

Words meanings summery:

• अजानन् (ajānan) - not knowing, unaware

• अर्जुनः (arjunaḥ) - Arjuna

• च (ca) - and, also

• अपि (api) - also, even

• निहतं (nihataṁ) - slain, killed, struck down

• पुत्रम् (putram) - son

• औरसम् (aurasam) - born of one's own body, legitimate

• जघान (jaghāna) - killed, slew, struck

• समरे (samare) - in battle, on the battlefield

• शूरान् (śūrān) - brave ones, heroes, warriors

• राज्ञः (rājñaḥ) - kings

• तान् (tān) - those

• भीष्मरक्षिणः (bhīṣmarakṣiṇaḥ) - protectors of Bhishma

Words meanings and morphology

अजानन् (ajānan) - not knowing, unaware

(adjective)

Nominative, masculine, singular of ajānat

ajānat - not knowing, unaware

Present Active Participle

Derived from root jñā (to know) with the negative prefix 'a-' and the śatṛ suffix.

Compound type : nañ-tatpuruṣa (a+jānat)

• a – not, un-
  indeclinable
• jānat – knowing, aware
  adjective (masculine)
  Present Active Participle
  Derived from root jñā (to know) + śatṛ suffix.
  Root: jñā (class 9)

Note: Agrees with Arjuna.

अर्जुनः (arjunaḥ) - Arjuna

(proper noun)

Nominative, masculine, singular of arjuna

arjuna - Arjuna (a major hero of the Mahābhārata)

च (ca) - and, also

(indeclinable)

अपि (api) - also, even

(indeclinable)

निहतं (nihataṁ) - slain, killed, struck down

(adjective)

Accusative, masculine, singular of nihata

nihata - slain, killed, struck down

Past Passive Participle

Derived from root han (to strike, kill) with prefix ni- and kta suffix.

Prefix: ni

Root: han (class 2)

Note: Agrees with 'putram'.

पुत्रम् (putram) - son

(noun)

Accusative, masculine, singular of putra

putra - son, child

औरसम् (aurasam) - born of one's own body, legitimate

(adjective)

Accusative, masculine, singular of aurasa

aurasa - born of the breast/body, legitimate (son)

Derived from 'uras' (breast, chest) + aṇ suffix, denoting 'born from'.

Note: Agrees with 'putram'.

जघान (jaghāna) - killed, slew, struck

(verb)

3rd person , singular, active, perfect (lit) of han

Root: han (class 2)

समरे (samare) - in battle, on the battlefield

(noun)

Locative, masculine, singular of samara

samara - battle, war, conflict

शूरान् (śūrān) - brave ones, heroes, warriors

(adjective)

Accusative, masculine, plural of śūra

śūra - brave, valiant, hero, warrior

Note: Used here as a noun, referring to 'kings'.

राज्ञः (rājñaḥ) - kings

(noun)

Accusative, masculine, plural of rājan

rājan - king, ruler

तान् (tān) - those

(pronoun)

Accusative, masculine, plural of tad

tad - that, those

Note: Refers to the brave kings.

भीष्मरक्षिणः (bhīṣmarakṣiṇaḥ) - protectors of Bhishma

(noun)

Accusative, masculine, plural of bhīṣmarakṣin

bhīṣmarakṣin - protector of Bhishma

Compound type : tatpuruṣa (bhīṣma+rakṣin)

• bhīṣma – Bhishma (a proper name, revered elder warrior)
  proper noun (masculine)
• rakṣin – protector, guard, defender
  noun (masculine)
  Derived from root rakṣ (to protect) + ṇini suffix.
  Root: rakṣ (class 1)