महाभारतः mahābhārataḥ - book-8, chapter-37, verse-2

संशप्तकानां कदनमकरोद्यत्र पाण्डवः ।
कोसलानां तथा राजन्नारायणबलस्य च ॥२॥

2. saṁśaptakānāṁ kadanamakarodyatra pāṇḍavaḥ ,
kosalānāṁ tathā rājannārāyaṇabalasya ca.

2. saṃśaptakānām kadanam akarot yatra pāṇḍavaḥ
kosalānām tathā rājan nārāyaṇabalasya ca

2. he rājan yatra pāṇḍavaḥ saṃśaptakānām tathā
kosalānām ca nārāyaṇabalasya kadanam akarot

2. O king (rājan), it was there that the Pāṇḍava (Arjuna) wreaked havoc upon the Saṃśaptakas, as well as the Kosalas and Nārāyaṇa's army.

Words meanings summery:

• संशप्तकानाम् (saṁśaptakānām) - Of the Saṃśaptakas, a specific contingent of warriors who had vowed to fight to the death against Arjuna. (of the Saṃśaptakas (a specific group of warriors))

• कदनम् (kadanam) - destruction, slaughter, killing, havoc

• अकरोत् (akarot) - made, did, caused, performed

• यत्र (yatra) - where, in which place

• पाण्डवः (pāṇḍavaḥ) - Arjuna, one of the Pāṇḍava brothers. (the son of Pāṇḍu, Arjuna)

• कोसलानाम् (kosalānām) - Of the warriors from the Kosala kingdom. (of the Kosalas (people of Kosala))

• तथा (tathā) - thus, so, in that manner, and also

• राजन् (rājan) - Addressed to Dhṛtarāṣṭra by Sañjaya. (O king)

• नारायणबलस्य (nārāyaṇabalasya) - Of the army provided by Nārāyaṇa (Kṛṣṇa) to Duryodhana, consisting of his Vṛṣṇi warriors. (of Nārāyaṇa's strength/army)

• च (ca) - and, also

Words meanings and morphology

संशप्तकानाम् (saṁśaptakānām) - Of the Saṃśaptakas, a specific contingent of warriors who had vowed to fight to the death against Arjuna. (of the Saṃśaptakas (a specific group of warriors))

(proper noun)

Genitive, masculine, plural of saṃśaptaka

saṁśaptaka - one who has taken a solemn vow (especially to die in battle or slay an enemy); a specific group of warriors in the Mahābhārata who vowed to kill Arjuna

Compound of 'sam-' (together) and 'śapta' (sworn, vowed)

Compound type : tatpuruṣa (sam+śapta)

• śapta – sworn, cursed, vowed
  adjective (masculine)
  Past Passive Participle
  Derived from root 'śap' (to curse, swear) with kta suffix
  Root: śap (class 1)

कदनम् (kadanam) - destruction, slaughter, killing, havoc

(noun)

Accusative, neuter, singular of kadana

kadana - killing, slaughter, destruction, havoc

Derived from root 'kad' (to be confused, to hurt)

Root: kad (class 1)

अकरोत् (akarot) - made, did, caused, performed

(verb)

3rd person , singular, active, imperfect past (laṅ) of kṛ

Imperfect past tense (laṅ) form of root 'kṛ'

Root: kṛ (class 8)

यत्र (yatra) - where, in which place

(indeclinable)

पाण्डवः (pāṇḍavaḥ) - Arjuna, one of the Pāṇḍava brothers. (the son of Pāṇḍu, Arjuna)

(proper noun)

Nominative, masculine, singular of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, son of Pāṇḍu (referring to Yudhiṣṭhira, Bhīma, Arjuna, Nakula, Sahadeva)

Derived from 'Pāṇḍu' with patronymic suffix 'a'

Note: Refers to Arjuna in this context.

कोसलानाम् (kosalānām) - Of the warriors from the Kosala kingdom. (of the Kosalas (people of Kosala))

(proper noun)

Genitive, masculine, plural of kosala

kosala - name of an ancient kingdom and its people (Kosalas)

तथा (tathā) - thus, so, in that manner, and also

(indeclinable)

राजन् (rājan) - Addressed to Dhṛtarāṣṭra by Sañjaya. (O king)

(noun)

Vocative, masculine, singular of rājan

rājan - king, sovereign, ruler

नारायणबलस्य (nārāyaṇabalasya) - Of the army provided by Nārāyaṇa (Kṛṣṇa) to Duryodhana, consisting of his Vṛṣṇi warriors. (of Nārāyaṇa's strength/army)

(noun)

Genitive, neuter, singular of nārāyaṇabala

nārāyaṇabala - Nārāyaṇa's strength, Nārāyaṇa's army

Tatpuruṣa compound of 'Nārāyaṇa' and 'bala'

Compound type : ṣaṣṭhī-tatpuruṣa (nārāyaṇa+bala)

• nārāyaṇa – Nārāyaṇa (a name for Viṣṇu, or Kṛṣṇa in this context)
  proper noun (masculine)
• bala – strength, power, force, army
  noun (neuter)

च (ca) - and, also

(indeclinable)