महाभारतः mahābhārataḥ - book-7, chapter-139, verse-31

द्रौणिः पाञ्चालराजानं भारद्वाजश्च सृञ्जयान् ।
छादयामासतुः संख्ये शरैः संनतपर्वभिः ॥३१॥

31. drauṇiḥ pāñcālarājānaṁ bhāradvājaśca sṛñjayān ,
chādayāmāsatuḥ saṁkhye śaraiḥ saṁnataparvabhiḥ.

31. drauṇiḥ pāñcāla-rājānam bhāradvājaḥ ca sṛñjayān
chādayāmāsatuḥ saṅkhye śaraiḥ saṃnata-parvabhiḥ

31. drauṇiḥ ca bhāradvājaḥ saṅkhye pāñcāla-rājānam
sṛñjayān saṃnata-parvabhiḥ śaraiḥ chādayāmāsatuḥ

31. Both Drauṇi (Aśvatthāman) and Bhāradvāja (Droṇa) in battle covered the Pañcāla king and the Sṛñjayas with arrows having curved shafts.

Words meanings summery:

• द्रौणिः (drauṇiḥ) - Aśvatthāman, son of Droṇa (Drauṇi (son of Droṇa, i.e., Aśvatthāman))

• पाञ्चाल-राजानम् (pāñcāla-rājānam) - Dhṛṣṭadyumna, the king of the Pañcālas (the king of Pañcāla)

• भारद्वाजः (bhāradvājaḥ) - Droṇa, the preceptor (Bhāradvāja (a sage's name, often Droṇa))

• च (ca) - and (and, also)

• सृञ्जयान् (sṛñjayān) - the Sṛñjaya warriors (the Sṛñjayas (a tribe/people))

• छादयामासतुः (chādayāmāsatuḥ) - they two showered (with arrows) (they two covered, they two obscured)

• सङ्ख्ये (saṅkhye) - in the battle (in battle, in war)

• शरैः (śaraiḥ) - by arrows

• संनत-पर्वभिः (saṁnata-parvabhiḥ) - with arrows having curved shafts (with bent joints/shafts, with curved nodes)

Words meanings and morphology

द्रौणिः (drauṇiḥ) - Aśvatthāman, son of Droṇa (Drauṇi (son of Droṇa, i.e., Aśvatthāman))

(proper noun)

Nominative, masculine, singular of drauṇi

drauṇi - son of Droṇa, Aśvatthāman

Patronymic from Droṇa.

Note: Refers to Aśvatthāman.

पाञ्चाल-राजानम् (pāñcāla-rājānam) - Dhṛṣṭadyumna, the king of the Pañcālas (the king of Pañcāla)

(noun)

Accusative, masculine, singular of pāñcāla-rājan

pāñcāla-rājan - king of Pañcāla

Compound type : ṣaṣṭhī-tatpuruṣa (pāñcāla+rājan)

• pāñcāla – of the Pañcālas, related to Pañcāla (a kingdom/people)
  adjective (masculine)
• rājan – king, ruler
  noun (masculine)

Note: Refers to Dhṛṣṭadyumna, the commander of the Pāṇḍava army.

भारद्वाजः (bhāradvājaḥ) - Droṇa, the preceptor (Bhāradvāja (a sage's name, often Droṇa))

(proper noun)

Nominative, masculine, singular of bhāradvāja

bhāradvāja - descendant of Bharadvāja; often refers to Droṇa

Patronymic from Bharadvāja.

Note: Refers to Droṇa.

च (ca) - and (and, also)

(indeclinable)

सृञ्जयान् (sṛñjayān) - the Sṛñjaya warriors (the Sṛñjayas (a tribe/people))

(proper noun)

Accusative, masculine, plural of sṛñjaya

sṛñjaya - name of an ancient tribe or people, allies of the Pāṇḍavas

छादयामासतुः (chādayāmāsatuḥ) - they two showered (with arrows) (they two covered, they two obscured)

(verb)

3rd person , dual, active, perfect (lit) of chad

periphrastic perfect

Periphrastic perfect form (āmāsa) of the causative of root chad (to cover).

Root: chad (class 10)

Note: Dual form for 'drauṇiḥ' and 'bhāradvājaḥ'.

सङ्ख्ये (saṅkhye) - in the battle (in battle, in war)

(noun)

Locative, neuter, singular of saṅkhya

saṅkhya - battle, war, combat

शरैः (śaraiḥ) - by arrows

(noun)

Instrumental, masculine, plural of śara

śara - arrow, reed

संनत-पर्वभिः (saṁnata-parvabhiḥ) - with arrows having curved shafts (with bent joints/shafts, with curved nodes)

(adjective)

Instrumental, masculine, plural of saṃnata-parvan

saṁnata-parvan - having bent joints/knots; having curved shafts (of arrows)

Compound type : bahuvrīhi (samnata+parvan)

• samnata – bent, curved, bowed
  adjective
  Past Passive Participle
  From prefix 'sam-' and root 'nam' (to bend).
  Prefix: sam
  Root: nam (class 1)
• parvan – joint, knot (of a reed or bamboo); section, limb; shaft (of an arrow)
  noun (neuter)

Note: Agrees with śaraiḥ. Refers to the physical characteristic of the arrows, perhaps indicating their speed or trajectory.