महाभारतः mahābhārataḥ - book-7, chapter-10, verse-42

मनसापि हि दुर्धर्षौ सेनामेतां यशस्विनौ ।
नाशयेतामिहेच्छन्तौ मानुषत्वात्तु नेच्छतः ॥४२॥

42. manasāpi hi durdharṣau senāmetāṁ yaśasvinau ,
nāśayetāmihecchantau mānuṣatvāttu necchataḥ.

42. manasā api hi durdharṣau senām etām yaśasvinau
nāśayetām iha icchāntau mānuṣatvāt tu na icchataḥ

42. hi durdharṣau yaśasvinau manasā api etām senām
iha icchāntau nāśayetām tu mānuṣatvāt na icchataḥ

42. Indeed, these two glorious (yaśasvin) and irresistible (durgharṣa) beings could destroy this army even by thought alone, if they desired to do so; but because of their humanity (mānuṣatva), they do not wish to.

Words meanings summery:

• मनसा (manasā) - by mind, with the mind, mentally

• अपि (api) - even (emphasizing mental action) (even, also, too, moreover)

• हि (hi) - indeed (emphatic) (indeed, surely, for, because)

• दुर्धर्षौ (durdharṣau) - irresistible, difficult to overcome

• सेनाम् (senām) - this army (referring to the Kaurava army) (army, host)

• एताम् (etām) - this army (this, this one)

• यशस्विनौ (yaśasvinau) - glorious, famous, illustrious

• नाशयेताम् (nāśayetām) - they would destroy, they should destroy

• इह (iha) - in this matter or in this situation (here, in this world, in this case)

• इच्छान्तौ (icchāntau) - if they were wishing (wishing, desiring (dual nominative masculine))

• मानुषत्वात् (mānuṣatvāt) - from humanity, because of being human

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

• न (na) - not, no

• इच्छतः (icchataḥ) - they wish, they desire (present dual)

Words meanings and morphology

मनसा (manasā) - by mind, with the mind, mentally

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, thought, intention

Root: man

अपि (api) - even (emphasizing mental action) (even, also, too, moreover)

(indeclinable)

हि (hi) - indeed (emphatic) (indeed, surely, for, because)

(indeclinable)

दुर्धर्षौ (durdharṣau) - irresistible, difficult to overcome

(adjective)

Nominative, masculine, dual of durdharṣa

durdharṣa - difficult to overcome, invincible, irresistible

Compound of `dur-` (difficult) and a derivative of `dhṛṣ` (to dare, to overcome).

Compound type : pradi-samāsa (dur+dharṣa)

• dur – bad, difficult, ill-
  indeclinable
• dharṣa – daring, bold
  noun (masculine)
  Derived from √dhṛṣ 'to dare, to overcome'
  Root: dhṛṣ (class 5)

Note: Adjective for Nara-Nārāyaṇa, implied subject.

सेनाम् (senām) - this army (referring to the Kaurava army) (army, host)

(noun)

Accusative, feminine, singular of senā

senā - army, host, weapon

Note: Object of 'nāśayetām'.

एताम् (etām) - this army (this, this one)

(pronoun)

Accusative, feminine, singular of etad

etad - this, this one (near the speaker)

Note: Modifies 'senām'.

यशस्विनौ (yaśasvinau) - glorious, famous, illustrious

(adjective)

Nominative, masculine, dual of yaśasvin

yaśasvin - glorious, famous, illustrious

Possessive adjective from `yaśas` (glory, fame)

Note: Adjective for Nara-Nārāyaṇa, implied subject.

नाशयेताम् (nāśayetām) - they would destroy, they should destroy

(verb)

3rd person , dual, active, optative (vidhiliṅ) of nāś

Optative mode, Parasamaipada

Causative of √naś (to perish) or root √nāś

Root: nāś (class 10)

Note: Action performed by Nara-Nārāyaṇa.

इह (iha) - in this matter or in this situation (here, in this world, in this case)

(indeclinable)

इच्छान्तौ (icchāntau) - if they were wishing (wishing, desiring (dual nominative masculine))

(adjective)

Nominative, masculine, dual of icchat

icchat - wishing, desiring

Present Active Participle

Present active participle of √iṣ (to wish, desire)

Root: iṣ (class 6)

Note: Adjective for Nara-Nārāyaṇa, implying a condition ("if wishing").

मानुषत्वात् (mānuṣatvāt) - from humanity, because of being human

(noun)

Ablative, neuter, singular of mānuṣatva

mānuṣatva - humanity, state of being human

Derived from `mānuṣa` (human) + `tva` (suffix for abstract noun)

Note: Indicates reason.

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

(indeclinable)

Note: Introduces a contrast.

न (na) - not, no

(indeclinable)

Note: Negates 'icchataḥ'.

इच्छतः (icchataḥ) - they wish, they desire (present dual)

(verb)

3rd person , dual, active, present (laṭ) of iṣ

Present tense, Parasamaipada

Root √iṣ, 6th conjugation

Root: iṣ (class 6)

Note: Subject is Nara-Nārāyaṇa.