महाभारतः mahābhārataḥ - book-8, chapter-16, verse-15

तेषां नानद्यतां चैव शस्त्रवृष्टिं च मुञ्चताम् ।
बहूनाधिरथिः कर्णः प्रममाथ रणेषुभिः ॥१५॥

15. teṣāṁ nānadyatāṁ caiva śastravṛṣṭiṁ ca muñcatām ,
bahūnādhirathiḥ karṇaḥ pramamātha raṇeṣubhiḥ.

15. teṣām nānadyatām ca eva śastravṛṣṭim ca muñcatām
bahūn ādhirathiḥ karṇaḥ pramamātha raṇeṣubhiḥ

15. ādhirathiḥ karṇaḥ teṣām nānadyatām ca eva
śastravṛṣṭim ca muñcatām bahūn raṇeṣubhiḥ pramamātha

15. Adhirathi Karṇa, with his battle-arrows, slaughtered many of those warriors in battle, even as they roared and unleashed a shower of weapons.

Words meanings summery:

• तेषाम् (teṣām) - of those warriors (of them, to them, their)

• नानद्यताम् (nānadyatām) - of those who were roaring, of the roaring ones

• च (ca) - and, also

• एव (eva) - indeed, only, even

• शस्त्रवृष्टिम् (śastravṛṣṭim) - shower of weapons, rain of weapons

• च (ca) - and, also

• मुञ्चताम् (muñcatām) - of those who were releasing, discharging, showering

• बहून् (bahūn) - many warriors (implied) (many)

• आधिरथिः (ādhirathiḥ) - Karṇa, the son of Adhiratha (son of Adhiratha)

• कर्णः (karṇaḥ) - Karṇa

• प्रममाथ (pramamātha) - he crushed, he slew, he destroyed

• रणेषुभिः (raṇeṣubhiḥ) - with battle-arrows, with arrows in battle

Words meanings and morphology

तेषाम् (teṣām) - of those warriors (of them, to them, their)

(pronoun)

Genitive, masculine, plural of tad

tad - that, those

नानद्यताम् (nānadyatām) - of those who were roaring, of the roaring ones

(adjective)

Genitive, masculine, plural of nānadyat

nānadyat - roaring loudly

Present Active Participle

From the intensive (reduplicated) form of root √nad.

Root: nad (class 1)

Note: Used substantively as 'of the roaring ones'.

च (ca) - and, also

(indeclinable)

एव (eva) - indeed, only, even

(indeclinable)

शस्त्रवृष्टिम् (śastravṛṣṭim) - shower of weapons, rain of weapons

(noun)

Accusative, feminine, singular of śastravṛṣṭi

śastravṛṣṭi - a rain or shower of weapons

Compound type : tatpuruṣa (śastra+vṛṣṭi)

• śastra – weapon, sword
  noun (neuter)
  Root: śas (class 2)
• vṛṣṭi – rain, shower
  noun (feminine)
  Root: vṛṣ (class 1)

च (ca) - and, also

(indeclinable)

मुञ्चताम् (muñcatām) - of those who were releasing, discharging, showering

(adjective)

Genitive, masculine, plural of muñcat

muñcat - releasing, discharging, letting loose

Present Active Participle

From root √muc (class 6).

Root: muc (class 6)

Note: Used substantively as 'of those who were releasing'.

बहून् (bahūn) - many warriors (implied) (many)

(adjective)

Accusative, masculine, plural of bahu

bahu - much, many, abundant

आधिरथिः (ādhirathiḥ) - Karṇa, the son of Adhiratha (son of Adhiratha)

(proper noun)

Nominative, masculine, singular of ādhirathi

ādhirathi - son of Adhiratha

Note: An epithet for Karṇa.

कर्णः (karṇaḥ) - Karṇa

(proper noun)

Nominative, masculine, singular of karṇa

karṇa - Karṇa (a prominent warrior in the Mahābhārata)

प्रममाथ (pramamātha) - he crushed, he slew, he destroyed

(verb)

3rd person , singular, active, perfect (Lit) of pramamātha

Prefix: pra

Root: manth (class 1)

रणेषुभिः (raṇeṣubhiḥ) - with battle-arrows, with arrows in battle

(noun)

Instrumental, masculine, plural of raṇeṣu

raṇeṣu - battle-arrow

Compound type : tatpuruṣa (raṇa+iṣu)

• raṇa – battle, fight, war
  noun (masculine)
  Root: raṇ (class 1)
• iṣu – arrow, missile
  noun (masculine)