महाभारतः mahābhārataḥ - book-6, chapter-54, verse-20

द्रवमाणं तु तत्सैन्यं तव पुत्रस्य संयुगे ।
नाशक्नुतां वारयितुं भीष्मद्रोणौ महारथौ ॥२०॥

20. dravamāṇaṁ tu tatsainyaṁ tava putrasya saṁyuge ,
nāśaknutāṁ vārayituṁ bhīṣmadroṇau mahārathau.

20. dravamāṇam tu tat sainyam tava putrasya samyuge
na aśaknutām vārayitum bhīṣmadroṇau mahārathau

20. tu samyuge bhīṣmadroṇau mahārathau tava putrasya
tat dravamāṇam sainyam vārayitum na aśaknutām

20. But in battle, even the great charioteers Bhīṣma and Droṇa were unable to restrain that fleeing army of your son.

Words meanings summery:

• द्रवमाणम् (dravamāṇam) - fleeing, running, moving quickly

• तु (tu) - but, indeed, on the other hand

• तत् (tat) - that

• सैन्यम् (sainyam) - the army, the host

• तव (tava) - your, of yours

• पुत्रस्य (putrasya) - of the son

• सम्युगे (samyuge) - in battle, in combat, in encounter

• न (na) - not, no

• अशक्नुताम् (aśaknutām) - they both were able

• वारयितुम् (vārayitum) - to stop, to restrain, to prevent

• भीष्मद्रोणौ (bhīṣmadroṇau) - Bhīṣma and Droṇa

• महारथौ (mahārathau) - great charioteers

Words meanings and morphology

द्रवमाणम् (dravamāṇam) - fleeing, running, moving quickly

(adjective)

Accusative, neuter, singular of dravamāṇa

dravamāṇa - running, fleeing, moving

present active participle (Ātmanepada)

from root dru with -māṇa suffix

Root: dru (class 1)

तु (tu) - but, indeed, on the other hand

(indeclinable)

तत् (tat) - that

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

सैन्यम् (sainyam) - the army, the host

(noun)

Accusative, neuter, singular of sainya

sainya - army, host, military

तव (tava) - your, of yours

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

पुत्रस्य (putrasya) - of the son

(noun)

Genitive, masculine, singular of putra

putra - son

सम्युगे (samyuge) - in battle, in combat, in encounter

(noun)

Locative, masculine, singular of samyuga

samyuga - battle, encounter, war

Compound type : tatpurusha (sam+yuga)

• sam – together, with, complete
  indeclinable
• yuga – yoke, pair, age, period; combat
  noun (masculine)

न (na) - not, no

(indeclinable)

अशक्नुताम् (aśaknutām) - they both were able

(verb)

3rd person , dual, active, imperfect (laṅ) of śak

imperfect tense, 3rd person dual

Root: śak (class 5)

वारयितुम् (vārayitum) - to stop, to restrain, to prevent

(indeclinable)

infinitive

infinitive of the causative of root vṛ

Root: vṛ (class 1)

भीष्मद्रोणौ (bhīṣmadroṇau) - Bhīṣma and Droṇa

(proper noun)

Nominative, masculine, dual of bhīṣmadroṇa

bhīṣmadroṇa - Bhīṣma and Droṇa

Compound type : dvandva (bhīṣma+droṇa)

• bhīṣma – Bhīṣma (a proper name)
  proper noun (masculine)
• droṇa – Droṇa (a proper name)
  proper noun (masculine)

महारथौ (mahārathau) - great charioteers

(noun)

Nominative, masculine, dual of mahāratha

mahāratha - great charioteer, great warrior

Compound type : karmadharaya (mahā+ratha)

• mahā – great, mighty
  adjective (masculine)
• ratha – chariot; a charioteer (figuratively, as 'one in a chariot')
  noun (masculine)