महाभारतः mahābhārataḥ - book-9, chapter-11, verse-39

तस्मिन्प्रवृत्ते संग्रामे राजन्वीरवरक्षये ।
अनिलेनेरितं घोरमुत्तस्थौ पार्थिवं रजः ॥३९॥

39. tasminpravṛtte saṁgrāme rājanvīravarakṣaye ,
anileneritaṁ ghoramuttasthau pārthivaṁ rajaḥ.

39. tasmin pravṛtte saṅgrāme rājan vīravarakṣaye
anilena īritam ghoram uttasthau pārthivam rajaḥ

39. rājan,
tasmin vīravarakṣaye saṅgrāme pravṛtte,
anilena īritam ghoram pārthivam rajaḥ uttasthau

39. O King, as that battle, which involved the destruction of the foremost heroes, commenced, a dreadful cloud of earthly dust, stirred by the wind, rose up.

Words meanings summery:

• तस्मिन् (tasmin) - in that

• प्रवृत्ते (pravṛtte) - having begun, having commenced, engaged

• सङ्ग्रामे (saṅgrāme) - in battle, in the war

• राजन् (rājan) - O King

• वीरवरक्षये (vīravarakṣaye) - in the destruction of the best heroes

• अनिलेन (anilena) - by the wind

• ईरितम् (īritam) - stirred, impelled, caused to move

• घोरम् (ghoram) - dreadful, terrible

• उत्तस्थौ (uttasthau) - rose up, stood up

• पार्थिवम् (pārthivam) - earthly, coming from earth

• रजः (rajaḥ) - dust, pollen

Words meanings and morphology

तस्मिन् (tasmin) - in that

(pronoun)

Locative, masculine, singular of tad

tad - that, this

प्रवृत्ते (pravṛtte) - having begun, having commenced, engaged

(adjective)

Locative, masculine, singular of pravṛtta

pravṛtta - begun, commenced, active, engaged

Past Passive Participle

From pra + √vṛt (to turn, occur)

Prefix: pra

Root: vṛt (class 1)

सङ्ग्रामे (saṅgrāme) - in battle, in the war

(noun)

Locative, masculine, singular of saṅgrāma

saṅgrāma - battle, war, combat

राजन् (rājan) - O King

(noun)

Vocative, masculine, singular of rājan

rājan - king

वीरवरक्षये (vīravarakṣaye) - in the destruction of the best heroes

(noun)

Locative, masculine, singular of vīravarakṣaya

vīravarakṣaya - destruction of the best heroes

Compound type : tatpuruṣa (vīra+vara+kṣaya)

• vīra – hero, warrior, brave man
  noun (masculine)
• vara – best, excellent, superior
  adjective (masculine)
  Root: vṛ (class 5)
• kṣaya – destruction, loss, decline, end
  noun (masculine)
  from √kṣi (to destroy, perish)
  Root: kṣi (class 5)

अनिलेन (anilena) - by the wind

(noun)

Instrumental, masculine, singular of anila

anila - wind, air, god of wind

ईरितम् (īritam) - stirred, impelled, caused to move

(adjective)

Nominative, neuter, singular of īrita

īrita - stirred, moved, sent forth, impelled

Past Passive Participle

from √īr (to move, stir, send)

Root: īr (class 2)

घोरम् (ghoram) - dreadful, terrible

(adjective)

Nominative, neuter, singular of ghora

ghora - dreadful, terrible, fearful, awful

उत्तस्थौ (uttasthau) - rose up, stood up

(verb)

3rd person , singular, active, perfect (lit) of ut-sthā

Perfect

Prefix: ut

Root: sthā (class 1)

पार्थिवम् (pārthivam) - earthly, coming from earth

(adjective)

Nominative, neuter, singular of pārthiva

pārthiva - earthly, terrestrial, royal, king

रजः (rajaḥ) - dust, pollen

(noun)

Nominative, neuter, singular of rajas

rajas - dust, dirt, pollen, gloom, passion (one of the three guṇas)