महाभारतः mahābhārataḥ - book-8, chapter-57, verse-8

राधेयोऽप्यन्यथा पार्थान्सृञ्जयांश्च महारथान् ।
निःशेषान्समरे कुर्यात्पश्यतोर्नौ जनार्दन ॥८॥

8. rādheyo'pyanyathā pārthānsṛñjayāṁśca mahārathān ,
niḥśeṣānsamare kuryātpaśyatornau janārdana.

8. rādheyaḥ api anyathā pārthān sṛñjayān ca mahārathān
niḥśeṣān samare kuryāt paśyatoḥ nau janārdana

8. janārdana,
anyathā rādheyaḥ api nau paśyatoḥ pārthān ca mahārathān sṛñjayān [ca] samare niḥśeṣān kuryāt.

8. O Janardana, otherwise, while we two are watching, the son of Radha (Karna) would utterly annihilate the Pandavas and the great warrior Srnjayas in battle.

Words meanings summery:

• राधेयः (rādheyaḥ) - son of Radha (Karna)

• अपि (api) - even (emphasizing the severity of the outcome) (also, even, too, moreover)

• अन्यथा (anyathā) - otherwise (if Karna is not killed) (otherwise, in another way, in a different manner)

• पार्थान् (pārthān) - the sons of Pritha, the Pandavas

• सृञ्जयान् (sṛñjayān) - the Srnjayas (name of a tribe/people)

• च (ca) - and (and, also)

• महारथान् (mahārathān) - great warriors (referring to the Srnjayas) (great chariots, great warriors)

• निःशेषान् (niḥśeṣān) - utterly, completely (destroyed) (without remainder, complete, entirely, utterly)

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

• कुर्यात् (kuryāt) - he would annihilate (literally 'make them without remainder') (he would do, he would make, he would cause)

• पश्यतोः (paśyatoḥ) - while we two are seeing (referring to Krishna and Arjuna) (of the two seeing, while the two are seeing)

• नौ (nau) - for us two (Krishna and Arjuna) (of us two, for us two)

• जनार्दन (janārdana) - O Janardana (an epithet of Krishna)

Words meanings and morphology

राधेयः (rādheyaḥ) - son of Radha (Karna)

(proper noun)

Nominative, masculine, singular of rādheya

rādheya - son of Radha; Karna

Derived from Radhā, denoting offspring

अपि (api) - even (emphasizing the severity of the outcome) (also, even, too, moreover)

(indeclinable)

अन्यथा (anyathā) - otherwise (if Karna is not killed) (otherwise, in another way, in a different manner)

(indeclinable)

पार्थान् (pārthān) - the sons of Pritha, the Pandavas

(proper noun)

Accusative, masculine, plural of pārtha

pārtha - son of Pritha; an epithet of Arjuna, Yudhishthira, Bhima, also for any Pandava

Derived from Pṛthā (Kunti), denoting offspring

सृञ्जयान् (sṛñjayān) - the Srnjayas (name of a tribe/people)

(proper noun)

Accusative, masculine, plural of sṛñjaya

sṛñjaya - name of an ancient king or a tribe/people allied with the Pandavas

च (ca) - and (and, also)

(indeclinable)

महारथान् (mahārathān) - great warriors (referring to the Srnjayas) (great chariots, great warriors)

(noun)

Accusative, masculine, plural of mahāratha

mahāratha - a great chariot, a great warrior, a commander of many chariots

Compound type : karmadhāraya (mahā+ratha)

• mahā – great, large, mighty
  adjective
• ratha – chariot, car, vehicle, warrior (in the context of battle)
  noun (masculine)

निःशेषान् (niḥśeṣān) - utterly, completely (destroyed) (without remainder, complete, entirely, utterly)

(adjective)

Accusative, masculine, plural of niḥśeṣa

niḥśeṣa - without remainder, entire, complete, all

Prefix 'nis' + śeṣa (remainder)

Compound type : avyayībhāva (nis+śeṣa)

• nis – out, forth, away, without
  indeclinable
• śeṣa – remainder, rest, residue
  noun (masculine)
  Root: śiṣ (class 7)

Note: Agrees with Pārthān and Sṛñjayān

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

(noun)

Locative, masculine, singular of samara

samara - battle, war, conflict

कुर्यात् (kuryāt) - he would annihilate (literally 'make them without remainder') (he would do, he would make, he would cause)

(verb)

3rd person , singular, active, optative (liṅ) of kṛ

Optative mood, 3rd person singular

Root: kṛ (class 8)

पश्यतोः (paśyatoḥ) - while we two are seeing (referring to Krishna and Arjuna) (of the two seeing, while the two are seeing)

(adjective)

Locative, masculine, dual of paśyat

paśyat - seeing, observing, looking

Present Active Participle

From root 'dṛś' (to see), with present stem 'paśya'

Root: dṛś (class 1)

Note: Can also be genitive dual.

नौ (nau) - for us two (Krishna and Arjuna) (of us two, for us two)

(pronoun)

Genitive, dual of asmad

asmad - we, us

Note: Can also be dative dual.

जनार्दन (janārdana) - O Janardana (an epithet of Krishna)

(proper noun)

Vocative, masculine, singular of janārdana

janārdana - agitator of men, destroyer of men, an epithet of Vishnu/Krishna

Compound type : tatpuruṣa (jana+ardana)

• jana – person, people, mankind
  noun (masculine)
• ardana – agitating, tormenting, destroying
  adjective (masculine)
  Agent noun/Adjective from root ard
  Root: ard (class 1)