महाभारतः mahābhārataḥ - book-6, chapter-15, verse-12

पाण्डवानां महत्सैन्यं यं दृष्ट्वोद्यन्तमाहवे ।
कालाग्निमिव दुर्धर्षं समवेष्टत नित्यशः ॥१२॥

12. pāṇḍavānāṁ mahatsainyaṁ yaṁ dṛṣṭvodyantamāhave ,
kālāgnimiva durdharṣaṁ samaveṣṭata nityaśaḥ.

12. paṇḍavānām mahat sainyam yam dṛṣṭvā udyantam
āhave kālāgnim iva durdharṣam samaveṣṭata nityaśaḥ

12. yam āhave udyantam kālāgnim iva durdharṣam dṛṣṭvā
paṇḍavānām mahat sainyam nityaśaḥ samaveṣṭata

12. The great army of the Pandavas constantly surrounded him, who was seen attacking in battle and was as formidable as the fire of destruction (kālāgni).

Words meanings summery:

• पण्डवानाम् (paṇḍavānām) - of the Pandavas, of the sons of Pandu

• महत् (mahat) - great, large, mighty

• सैन्यम् (sainyam) - army, host

• यम् (yam) - whom

• दृष्ट्वा (dṛṣṭvā) - having seen

• उद्यन्तम् (udyantam) - attacking, rising forth, advancing

• आहवे (āhave) - in battle, in combat

• कालाग्निम् (kālāgnim) - the fire (of universal dissolution) (the fire of destruction, the destructive fire)

• इव (iva) - like, as, as if

• दुर्धर्षम् (durdharṣam) - formidable, unconquerable, invincible

• समवेष्टत (samaveṣṭata) - surrounded, encompassed, gathered around

• नित्यशः (nityaśaḥ) - constantly, always, perpetually

Words meanings and morphology

पण्डवानाम् (paṇḍavānām) - of the Pandavas, of the sons of Pandu

(proper noun)

Genitive, masculine, plural of paṇḍava

paṇḍava - descendant of Pandu, son of Pandu

महत् (mahat) - great, large, mighty

(adjective)

Nominative, neuter, singular of mahat

mahat - great, large, mighty

सैन्यम् (sainyam) - army, host

(noun)

Nominative, neuter, singular of sainya

sainya - army, host

यम् (yam) - whom

(pronoun)

Accusative, masculine, singular of yad

yad - who, which, what

दृष्ट्वा (dṛṣṭvā) - having seen

(indeclinable)

absolutive

formed from root dṛś with suffix tvā

Root: dṛś (class 1)

उद्यन्तम् (udyantam) - attacking, rising forth, advancing

(participle)

Accusative, masculine, singular of udyant

udyant - rising, advancing, attacking

present active participle

formed from ud (prefix) + i (root) + at suffix

Prefix: ud

Root: i (class 2)

आहवे (āhave) - in battle, in combat

(noun)

Locative, masculine, singular of āhava

āhava - battle, war, combat

कालाग्निम् (kālāgnim) - the fire (of universal dissolution) (the fire of destruction, the destructive fire)

(compound noun)

Compound type : tatpurusha (kāla+agni)

• kāla – time, death
  noun (masculine)
• agni – fire, god of fire
  noun (masculine)

इव (iva) - like, as, as if

(indeclinable)

दुर्धर्षम् (durdharṣam) - formidable, unconquerable, invincible

(adjective)

Accusative, masculine, singular of durdharṣa

durdharṣa - difficult to overcome, formidable, invincible

समवेष्टत (samaveṣṭata) - surrounded, encompassed, gathered around

(verb)

3rd person , singular, middle, past imperfect (laṅ) of veṣṭ

Imperfect

3rd person singular, middle voice, imperfect tense

Prefixes: sam+ava

Root: veṣṭ (class 1)

नित्यशः (nityaśaḥ) - constantly, always, perpetually

(indeclinable)