महाभारतः mahābhārataḥ - book-8, chapter-39, verse-38

ततो युधिष्ठिरो राजा त्यक्त्वा द्रौणिं महाहवे ।
प्रययौ तावकं सैन्यं युक्तः क्रूराय कर्मणे ॥३८॥

38. tato yudhiṣṭhiro rājā tyaktvā drauṇiṁ mahāhave ,
prayayau tāvakaṁ sainyaṁ yuktaḥ krūrāya karmaṇe.

38. tatas yudhiṣṭhiraḥ rājā tyaktvā droṇim mahāhave
prayayau tāvakam sainyam yuktaḥ krūrāya karmaṇe

38. tatas rājā yudhiṣṭhiraḥ mahāhave droṇim tyaktvā
krūrāya karmaṇe yuktaḥ tāvakam sainyam prayayau

38. Then King Yudhiṣṭhira, leaving Droṇa's son (Aśvatthāmā) in the great battle, advanced upon your army, ready for a cruel action (karma).

Words meanings summery:

• ततस् (tatas) - then (then, thereupon)

• युधिष्ठिरः (yudhiṣṭhiraḥ) - Yudhiṣṭhira

• राजा (rājā) - king

• त्यक्त्वा (tyaktvā) - having left behind (having abandoned, having left)

• द्रोणिम् (droṇim) - Aśvatthāmā (Droṇa's son) (Droṇa's son)

• महाहवे (mahāhave) - in the great battle (in the great battle/war)

• प्रययौ (prayayau) - advanced, went forth (proceeded, went forth)

• तावकम् (tāvakam) - your (Duryodhana's/Kauravas') (your (related to you))

• सैन्यम् (sainyam) - army (army, troop)

• युक्तः (yuktaḥ) - intent, engaged, ready (joined, engaged, intent, endowed with (yoga))

• क्रूराय (krūrāya) - for a cruel/fierce (action) (for cruel, for fierce)

• कर्मणे (karmaṇe) - for action/purpose (for action, for deed (karma))

Words meanings and morphology

ततस् (tatas) - then (then, thereupon)

(indeclinable)

युधिष्ठिरः (yudhiṣṭhiraḥ) - Yudhiṣṭhira

(proper noun)

Nominative, masculine, singular of yudhiṣṭhira

yudhiṣṭhira - Yudhiṣṭhira (eldest Pāṇḍava)

राजा (rājā) - king

(noun)

Nominative, masculine, singular of rājan

rājan - king, ruler

त्यक्त्वा (tyaktvā) - having left behind (having abandoned, having left)

(indeclinable)

Gerund (absolutive)

Root √tyaj (to abandon), suffix -tvā

Root: tyaj (class 1)

द्रोणिम् (droṇim) - Aśvatthāmā (Droṇa's son) (Droṇa's son)

(proper noun)

Accusative, masculine, singular of drauṇi

drauṇi - son of Droṇa, Aśvatthāmā

महाहवे (mahāhave) - in the great battle (in the great battle/war)

(noun)

Locative, masculine, singular of mahāhava

mahāhava - great battle, great war

Compound type : karmadhāraya (mahat+āhava)

• mahat – great, large
  adjective
• āhava – battle, war, challenge
  noun (masculine)

प्रययौ (prayayau) - advanced, went forth (proceeded, went forth)

(verb)

3rd person , singular, active, past perfect (Lit) of prayā

Past perfect (Lit)

Root √yā (to go) with upasarga pra, in Lit (perfect) tense, 3rd person singular

Prefix: pra

Root: yā (class 2)

तावकम् (tāvakam) - your (Duryodhana's/Kauravas') (your (related to you))

(adjective)

Accusative, neuter, singular of tāvaka

tāvaka - yours, belonging to you

सैन्यम् (sainyam) - army (army, troop)

(noun)

Accusative, neuter, singular of sainya

sainya - army, troop, host

युक्तः (yuktaḥ) - intent, engaged, ready (joined, engaged, intent, endowed with (yoga))

(participle)

Nominative, masculine, singular of yukta

yukta - joined, yoked, engaged, endowed, prepared, connected, appropriate (yoga)

Past Passive Participle

Root √yuj (to join), suffix -ta

Root: yuj (class 7)

क्रूराय (krūrāya) - for a cruel/fierce (action) (for cruel, for fierce)

(adjective)

Dative, neuter, singular of krūra

krūra - cruel, fierce, dreadful

कर्मणे (karmaṇe) - for action/purpose (for action, for deed (karma))

(noun)

Dative, neuter, singular of karman

karman - action, deed, work, ritual (karma)