महाभारतः mahābhārataḥ - book-7, chapter-158, verse-45

एतौ मूलं हि दुःखानामस्माकं पुरुषर्षभ ।
एतौ रणे समासाद्य पराश्वस्तः सुयोधनः ॥४५॥

45. etau mūlaṁ hi duḥkhānāmasmākaṁ puruṣarṣabha ,
etau raṇe samāsādya parāśvastaḥ suyodhanaḥ.

45. etau mūlaṃ hi duḥkhānām asmākaṃ puruṣarṣabha
etau raṇe samāsādya parāśvastaḥ suyodhanaḥ

45. puruṣarṣabha etau hi asmākaṃ duḥkhānām mūlaṃ
etau raṇe samāsādya suyodhanaḥ parāśvastaḥ

45. O best among men, these two (Droṇa and Karṇa) are certainly the root of our sufferings. Relying on these two in battle, Suyodhana (Duryodhana) feels completely reassured.

Words meanings summery:

• एतौ (etau) - these two (Droṇa and Karṇa) (these two)

• मूलं (mūlaṁ) - the root, the origin, the cause

• हि (hi) - indeed, surely

• दुःखानाम् (duḥkhānām) - of the sorrows, of the sufferings

• अस्माकं (asmākaṁ) - our, of us

• पुरुषर्षभ (puruṣarṣabha) - O best among men

• एतौ (etau) - these two (Droṇa and Karṇa) (these two)

• रणे (raṇe) - in battle

• समासाद्य (samāsādya) - having reached, having obtained, having approached, having relied upon

• पराश्वस्तः (parāśvastaḥ) - greatly confident, fully reassured, very hopeful

• सुयोधनः (suyodhanaḥ) - Suyodhana (Duryodhana) (Suyodhana)

Words meanings and morphology

एतौ (etau) - these two (Droṇa and Karṇa) (these two)

(pronoun)

Nominative, masculine, dual of etad

etad - this, this one, these

Note: Subject.

मूलं (mūlaṁ) - the root, the origin, the cause

(noun)

Nominative, neuter, singular of mūla

mūla - root, basis, origin, source, cause

Note: Predicate nominative.

हि (hi) - indeed, surely

(indeclinable)

दुःखानाम् (duḥkhānām) - of the sorrows, of the sufferings

(noun)

Genitive, neuter, plural of duḥkha

duḥkha - sorrow, suffering, pain, misery, unhappiness

From dus (bad) + kha (axle-hole, indicating difficulty)

Note: Qualifies 'mūlaṃ'.

अस्माकं (asmākaṁ) - our, of us

(pronoun)

Genitive, plural of asmad

asmad - I, we

Note: Possessive.

पुरुषर्षभ (puruṣarṣabha) - O best among men

(noun)

Vocative, masculine, singular of puruṣarṣabha

puruṣarṣabha - best of men, foremost among men, bull among men

Compound type : tatpuruṣa (puruṣa+ṛṣabha)

• puruṣa – man, human being, male, the supreme cosmic person (puruṣa)
  noun (masculine)
• ṛṣabha – bull, chief, excellent, best
  noun (masculine)

Note: Address to Kṛṣṇa.

एतौ (etau) - these two (Droṇa and Karṇa) (these two)

(pronoun)

Accusative, masculine, dual of etad

etad - this, this one, these

Note: Object of 'samāsādya'.

रणे (raṇe) - in battle

(noun)

Locative, masculine, singular of raṇa

raṇa - battle, combat, war, conflict

Derived from root raṇ (to delight, to sound)

Root: raṇ (class 1)

Note: Location of action.

समासाद्य (samāsādya) - having reached, having obtained, having approached, having relied upon

(indeclinable participle)

पराश्वस्तः (parāśvastaḥ) - greatly confident, fully reassured, very hopeful

(adjective)

Nominative, masculine, singular of parāśvasta

parāśvasta - greatly confident, fully reassured, thoroughly trusted

Past Passive Participle

From para-ā- + root śvas (to breathe, to trust)

Prefixes: para+ā

Root: śvas (class 2)

सुयोधनः (suyodhanaḥ) - Suyodhana (Duryodhana) (Suyodhana)

(proper noun)

Nominative, masculine, singular of suyodhana

suyodhana - easily fought, good fighter; name of Duryodhana

From su (good, easy) + yodhana (fighter, fighting)

Compound type : karmadhāraya (su+yodhana)

• su – good, well, excellent, easy
  indeclinable
  Prefix
• yodhana – fighter, warrior, fighting
  noun (masculine)
  From root yudh (to fight)
  Root: yudh (class 4)

Note: Subject of the sentence.