महाभारतः mahābhārataḥ - book-1, chapter-123, verse-15

अथ द्रोणाभ्यनुज्ञाताः कदाचित्कुरुपाण्डवाः ।
रथैर्विनिर्ययुः सर्वे मृगयामरिमर्दनाः ॥१५॥

15. atha droṇābhyanujñātāḥ kadācitkurupāṇḍavāḥ ,
rathairviniryayuḥ sarve mṛgayāmarimardanāḥ.

15. atha droṇa abhyanujñātāḥ kadācit kurupāṇḍavāḥ
rathaiḥ viniaryayuḥ sarve mṛgayām arimardanāḥ

15. Then, one day, the Kuru and Pandava princes, having obtained Drona's permission, and being vanquishers of foes, all departed in their chariots for a hunt.

Words meanings summery:

• अथ (atha) - then, now, thereupon

• द्रोणाभ्यनुज्ञाताः (droṇābhyanujñātāḥ) - permitted by Drona, authorized by Drona

• कदाचित् (kadācit) - sometimes, one day, once

• कुरुपाण्डवाः (kurupāṇḍavāḥ) - the Kurus and Pandavas

• रथैः (rathaiḥ) - by chariots, in chariots

• विनिअर्ययुः (viniaryayuḥ) - they went out, they departed

• सर्वे (sarve) - all, everyone

• मृगयाम् (mṛgayām) - for hunting, to the hunt

• अरिमर्दनाः (arimardanāḥ) - vanquishers of enemies, tormentors of foes

Words meanings and morphology

अथ (atha) - then, now, thereupon

(indeclinable)

द्रोणाभ्यनुज्ञाताः (droṇābhyanujñātāḥ) - permitted by Drona, authorized by Drona

(adjective)

Nominative, masculine, plural of droṇābhyanujñāta

droṇābhyanujñāta - permitted or authorized by Drona

Compound type : tatpurusha (droṇa+abhyanujñāta)

• droṇa – Drona (name of the teacher)
  proper noun (masculine)
• abhyanujñāta – permitted, authorized, consented to
  adjective (masculine)
  Past Passive Participle
  Derived from the root √jñā (to know) with prefixes abhi- and anu-.
  Prefixes: abhi+anu
  Root: jñā (class 9)

कदाचित् (kadācit) - sometimes, one day, once

(indeclinable)

कुरुपाण्डवाः (kurupāṇḍavāḥ) - the Kurus and Pandavas

(proper noun)

Nominative, masculine, plural of kurupāṇḍava

kurupāṇḍava - the Kuru and Pandava princes (descendants of Kuru and Pāṇḍu)

Compound type : dvandva (kuru+pāṇḍava)

• kuru – a Kuru (descendant of King Kuru), the name of a dynasty
  proper noun (masculine)
• pāṇḍava – a Pandava (descendant of King Pāṇḍu)
  proper noun (masculine)

रथैः (rathaiḥ) - by chariots, in chariots

(noun)

Instrumental, masculine, plural of ratha

ratha - chariot, car, vehicle, fighter (in a chariot)

विनिअर्ययुः (viniaryayuḥ) - they went out, they departed

(verb)

3rd person , plural, active, perfect (Lit) of vi-ni-√ṛ

Prefixes: vi+ni

Root: ṛ (class 1)

सर्वे (sarve) - all, everyone

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, every, whole, entire, universal

मृगयाम् (mṛgayām) - for hunting, to the hunt

(noun)

Accusative, feminine, singular of mṛgayā

mṛgayā - hunting, chase, quest for wild animals

अरिमर्दनाः (arimardanāḥ) - vanquishers of enemies, tormentors of foes

(noun)

Nominative, masculine, plural of arimardana

arimardana - vanquisher of enemies, foe-destroyer, crushing enemies

Compound type : tatpurusha (ari+mardana)

• ari – enemy, foe, rival, stranger
  noun (masculine)
• mardana – crushing, destroying, tormenting, rubbing, grinding
  noun (masculine)
  From the root √mṛd (to crush, rub, destroy).
  Root: mṛd (class 7)