महाभारतः mahābhārataḥ - book-8, chapter-32, verse-15

अथ पाञ्चालचेदीनां सृञ्जयानां च मारिष ।
त्वदीयैः सह संग्राम आसीत्परमदारुणः ॥१५॥

15. atha pāñcālacedīnāṁ sṛñjayānāṁ ca māriṣa ,
tvadīyaiḥ saha saṁgrāma āsītparamadāruṇaḥ.

15. atha pāñcāla-cedīnām sṛñjayānām ca māriṣa
tvadīyaiḥ saha saṃgrāmaḥ āsīt parama-dāruṇaḥ

15. atha māriṣa pāñcāla-cedīnām ca sṛñjayānām ca
tvadīyaiḥ saha parama-dāruṇaḥ saṃgrāmaḥ āsīt

15. Then, O respected one (māriṣa), an exceedingly dreadful battle (saṃgrāma) ensued between your warriors and those of the Pañcālas, Cedis, and Sṛñjayas.

Words meanings summery:

• अथ (atha) - now, then, thereupon

• पाञ्चाल-चेदीनाम् (pāñcāla-cedīnām) - referring to the people or warriors of Pañcāla and Cedi kingdoms (of the Pañcālas and Cedis)

• सृञ्जयानाम् (sṛñjayānām) - referring to the people or warriors of the Sṛñjaya dynasty/kingdom (of the Sṛñjayas)

• च (ca) - and

• मारिष (māriṣa) - a form of address used by Sañjaya to Dhṛtarāṣṭra (O respected one, O venerable one)

• त्वदीयैः (tvadīyaiḥ) - referring to Dhṛtarāṣṭra's warriors (with your (warriors/men))

• सह (saha) - with, along with

• संग्रामः (saṁgrāmaḥ) - battle, war

• आसीत् (āsīt) - it was

• परम-दारुणः (parama-dāruṇaḥ) - extremely dreadful, most terrible

Words meanings and morphology

अथ (atha) - now, then, thereupon

(indeclinable)

पाञ्चाल-चेदीनाम् (pāñcāla-cedīnām) - referring to the people or warriors of Pañcāla and Cedi kingdoms (of the Pañcālas and Cedis)

(proper noun)

Genitive, masculine, plural of pāñcāla-cedī

pāñcāla-cedī - Pañcālas and Cedis (names of peoples or kingdoms)

Compound type : dvandva (pāñcāla+cedī)

• pāñcāla – belonging to the Pañcāla country/people; a Pañcāla warrior
  proper noun (masculine)
• cedī – belonging to the Cedi country/people; a Cedi warrior
  proper noun (masculine)

सृञ्जयानाम् (sṛñjayānām) - referring to the people or warriors of the Sṛñjaya dynasty/kingdom (of the Sṛñjayas)

(proper noun)

Genitive, masculine, plural of sṛñjaya

sṛñjaya - Sṛñjaya (name of a people/dynasty)

च (ca) - and

(indeclinable)

मारिष (māriṣa) - a form of address used by Sañjaya to Dhṛtarāṣṭra (O respected one, O venerable one)

(noun)

Vocative, masculine, singular of māriṣa

māriṣa - respected, venerable, honorable sir (term of address)

त्वदीयैः (tvadīyaiḥ) - referring to Dhṛtarāṣṭra's warriors (with your (warriors/men))

(adjective)

Instrumental, masculine, plural of tvadīya

tvadīya - yours, belonging to you

Note: Used substantively to mean 'your men' or 'your side'.

सह (saha) - with, along with

(indeclinable)

Note: Governs the instrumental case.

संग्रामः (saṁgrāmaḥ) - battle, war

(noun)

Nominative, masculine, singular of saṃgrāma

saṁgrāma - battle, combat, war, conflict

Prefix: sam

Root: gram (class 1)

आसीत् (āsīt) - it was

(verb)

3rd person , singular, active, imperfect past (Laṅ) of as

Root: as (class 2)

परम-दारुणः (parama-dāruṇaḥ) - extremely dreadful, most terrible

(adjective)

Nominative, masculine, singular of paramadāruṇa

paramadāruṇa - extremely dreadful/terrible, most fierce

Compound type : karmadhāraya (parama+dāruṇa)

• parama – highest, utmost, supreme, extremely
  adjective
• dāruṇa – dreadful, terrible, severe, fierce
  adjective

Note: Qualifies saṃgrāmaḥ