महाभारतः mahābhārataḥ - book-7, chapter-72, verse-21

वर्तमाने तथा युद्धे निर्मर्यादे विशां पते ।
धृष्टद्युम्नो हयानश्वैर्द्रोणस्य व्यत्यमिश्रयत् ॥२१॥

21. vartamāne tathā yuddhe nirmaryāde viśāṁ pate ,
dhṛṣṭadyumno hayānaśvairdroṇasya vyatyamiśrayat.

21. vartamāne tathā yuddhe nirmaryāde viśām pate
dhṛṣṭadyumnaḥ hayān aśvaiḥ droṇasya vyatyamishrayat

21. viśām pate tathā vartamāne nirmaryāde yuddhe
dhṛṣṭadyumnaḥ droṇasya aśvaiḥ hayān vyatyamishrayat

21. O lord of subjects (viśām pate), as the battle thus raged without restraint (nirmaryāde), Dhṛṣṭadyumna intertwined his horses with Droṇa's horses.

Words meanings summery:

• वर्तमाने (vartamāne) - in the current, ongoing battle (in the present; while existing; in the current (battle))

• तथा (tathā) - thus, in such a way (thus, so, in that manner)

• युद्धे (yuddhe) - in the battle (in battle, in war)

• निर्मर्यादे (nirmaryāde) - without any restraint, lawless (without restraint, lawless, unrestrained)

• विशाम् (viśām) - of the subjects/people (of the people, of the subjects, of the inhabitants)

• पते (pate) - O lord (addressing the king Dhṛtarāṣṭra) (O lord, O master)

• धृष्टद्युम्नः (dhṛṣṭadyumnaḥ) - Dhṛṣṭadyumna (Dhṛṣṭadyumna (proper name))

• हयान् (hayān) - (his own) horses (horses (accusative plural))

• अश्वैः (aśvaiḥ) - with (Droṇa's) horses (by/with horses)

• द्रोणस्य (droṇasya) - of Droṇa (the guru) (of Droṇa)

• व्यत्यमिस्ह्रयत् (vyatyamishrayat) - mixed (his horses) with (Droṇa's horses) (mixed, intertwined, blended)

Words meanings and morphology

वर्तमाने (vartamāne) - in the current, ongoing battle (in the present; while existing; in the current (battle))

(adjective)

Locative, neuter, singular of vartamāna

vartamāna - existing, present, current, being, living

Present Active Participle

From root vṛt (to turn, exist) + śānac (middle voice present participle suffix)

Root: vṛt (class 1)

Note: Agrees with yuddhe

तथा (tathā) - thus, in such a way (thus, so, in that manner)

(indeclinable)

युद्धे (yuddhe) - in the battle (in battle, in war)

(noun)

Locative, neuter, singular of yuddha

yuddha - battle, fight, war

From root yudh (to fight)

Root: yudh (class 4)

निर्मर्यादे (nirmaryāde) - without any restraint, lawless (without restraint, lawless, unrestrained)

(adjective)

Locative, neuter, singular of nirmaryāda

nirmaryāda - without boundaries, without restraint, lawless, unlimited

nis (without) + maryādā (limit, boundary, restraint)

Compound type : bahuvrīhi (nis+maryādā)

• nis – without, out, free from
  indeclinable
• maryādā – limit, boundary, restraint, rule, propriety
  noun (feminine)

विशाम् (viśām) - of the subjects/people (of the people, of the subjects, of the inhabitants)

(noun)

Genitive, feminine, plural of viś

viś - people, subjects, community, clan

Root: viś (class 6)

पते (pate) - O lord (addressing the king Dhṛtarāṣṭra) (O lord, O master)

(noun)

Vocative, masculine, singular of pati

pati - lord, master, husband, owner

धृष्टद्युम्नः (dhṛṣṭadyumnaḥ) - Dhṛṣṭadyumna (Dhṛṣṭadyumna (proper name))

(proper noun)

Nominative, masculine, singular of dhṛṣṭadyumna

dhṛṣṭadyumna - Dhṛṣṭadyumna (name of Drupada's son, commander of the Pāṇḍava army)

dhṛṣṭa (bold, daring) + dyumna (glory, splendor)

Compound type : tatpuruṣa (dhṛṣṭa+dyumna)

• dhṛṣṭa – bold, daring, impudent
  adjective (masculine)
  Past Passive Participle
  From root dhṛṣ (to dare, be bold)
  Root: dhṛṣ (class 5)
• dyumna – glory, splendor, wealth
  noun (neuter)

हयान् (hayān) - (his own) horses (horses (accusative plural))

(noun)

Accusative, masculine, plural of haya

haya - horse, steed

From root hi (to go, move)

Root: hi (class 5)

अश्वैः (aśvaiḥ) - with (Droṇa's) horses (by/with horses)

(noun)

Instrumental, masculine, plural of aśva

aśva - horse, steed

द्रोणस्य (droṇasya) - of Droṇa (the guru) (of Droṇa)

(proper noun)

Genitive, masculine, singular of droṇa

droṇa - Droṇa (name of a famous guru and warrior)

व्यत्यमिस्ह्रयत् (vyatyamishrayat) - mixed (his horses) with (Droṇa's horses) (mixed, intertwined, blended)

(verb)

3rd person , singular, active, past imperfect (laṅ) of miśr

Imperfect (Laṅ-lakāra)

Root miśr (10th class, parasmaipada/ātmanepada) with prefixes vi and ati. vyati is the sandhi of vi + ati. The a prefix indicates imperfect tense.

Prefixes: vi+ati

Root: miśr (class 10)