महाभारतः mahābhārataḥ - book-6, chapter-50, verse-4

तामापतन्तीं सहसा कलिङ्गानां महाचमूम् ।
रथनागाश्वकलिलां प्रगृहीतमहायुधाम् ॥४॥

4. tāmāpatantīṁ sahasā kaliṅgānāṁ mahācamūm ,
rathanāgāśvakalilāṁ pragṛhītamahāyudhām.

4. tām āpatantīm sahasā kaliṅgānām mahācamūm
rathanāgāśvakalilām pragṛhītamahāyudhām

4. sahasā āpatantīm rathanāgāśvakalilām
pragṛhītamahāyudhām kaliṅgānām tām mahācamūm

4. That great army of the Kaliṅgas, approaching swiftly, filled with chariots, elephants, and horses, and wielding mighty weapons...

Words meanings summery:

• ताम् (tām) - that (army) (that (feminine, accusative singular))

• आपतन्तीम् (āpatantīm) - approaching (swiftly) (approaching, falling upon)

• सहसा (sahasā) - swiftly, suddenly, forcibly

• कलिङ्गानाम् (kaliṅgānām) - of the Kaliṅgas (a people/kingdom) (of the Kaliṅgas)

• महाचमूम् (mahācamūm) - great army

• रथनागाश्वकलिलाम् (rathanāgāśvakalilām) - confused/filled with chariots, elephants, and horses

• प्रगृहीतमहायुधाम् (pragṛhītamahāyudhām) - wielding mighty weapons

Words meanings and morphology

ताम् (tām) - that (army) (that (feminine, accusative singular))

(pronoun)

Accusative, feminine, singular of tad

tad - that, she, it

आपतन्तीम् (āpatantīm) - approaching (swiftly) (approaching, falling upon)

(adjective)

Accusative, feminine, singular of āpatat

āpatat - falling down, flying towards, arriving, approaching

Present Active Participle

from √pat (to fall) with prefix ā

Prefix: ā

Root: pat (class 1)

सहसा (sahasā) - swiftly, suddenly, forcibly

(indeclinable)

कलिङ्गानाम् (kaliṅgānām) - of the Kaliṅgas (a people/kingdom) (of the Kaliṅgas)

(proper noun)

Genitive, masculine, plural of kaliṅga

kaliṅga - name of a country and its people

महाचमूम् (mahācamūm) - great army

(noun)

Accusative, feminine, singular of mahācamū

mahācamū - a large army, great host

Compound type : bahuvrihi (mahā+camū)

• mahā – great, large
  adjective
• camū – army, host
  noun (feminine)

रथनागाश्वकलिलाम् (rathanāgāśvakalilām) - confused/filled with chariots, elephants, and horses

(adjective)

Accusative, feminine, singular of rathanāgāśvakalila

rathanāgāśvakalila - filled or confused with chariots, elephants, and horses

Compound type : dvandva-tatpurusha (ratha+nāga+aśva+kalila)

• ratha – chariot
  noun (masculine)
• nāga – elephant, serpent
  noun (masculine)
• aśva – horse
  noun (masculine)
• kalila – full of, confused, mixed, crowded
  adjective (neuter)

प्रगृहीतमहायुधाम् (pragṛhītamahāyudhām) - wielding mighty weapons

(adjective)

Accusative, feminine, singular of pragṛhītamahāyudha

pragṛhītamahāyudha - having mighty weapons grasped or taken up

Compound type : bahuvrihi (pragṛhīta+mahāyudha)

• pragṛhīta – grasped, taken up, wielded
  adjective
  Past Passive Participle
  from √grah (to seize) with prefix pra
  Prefix: pra
  Root: grah (class 9)
• mahāyudha – great weapon, mighty weapon
  noun (neuter)