महाभारतः mahābhārataḥ - book-5, chapter-58, verse-11

इन्द्रविष्णुसमावेतौ मन्दात्मा नावबुध्यते ।
संश्रयाद्द्रोणभीष्माभ्यां कर्णस्य च विकत्थनात् ॥११॥

11. indraviṣṇusamāvetau mandātmā nāvabudhyate ,
saṁśrayāddroṇabhīṣmābhyāṁ karṇasya ca vikatthanāt.

11. indraviṣṇusamāvetau mandātmā na avabudhyate
saṃśrayāt droṇabhīṣmābhyām karṇasya ca vikatthāt

11. The dull-minded one does not comprehend these two, who are like Indra and Vishnu combined, due to his reliance on Drona and Bhishma, and because of Karna's boasting.

Words meanings summery:

• इन्द्रविष्णुसमावेतौ (indraviṣṇusamāvetau) - Arjuna and Krishna, who are like Indra and Vishnu combined (united like Indra and Vishnu)

• मन्दात्मा (mandātmā) - Duryodhana (the dull-minded one) (dull-minded one, foolish soul)

• न (na) - not, no

• अवबुध्यते (avabudhyate) - understands, comprehends, perceives

• संश्रयात् (saṁśrayāt) - from reliance, due to resort, because of dependence

• द्रोणभीष्माभ्याम् (droṇabhīṣmābhyām) - by Drona and Bhishma, from Drona and Bhishma

• कर्णस्य (karṇasya) - of Karna

• च (ca) - and, also

• विकत्थात् (vikatthāt) - from boasting, due to boasting

Words meanings and morphology

इन्द्रविष्णुसमावेतौ (indraviṣṇusamāvetau) - Arjuna and Krishna, who are like Indra and Vishnu combined (united like Indra and Vishnu)

(adjective)

Nominative, masculine, dual of indraviṣṇusamāveta

indraviṣṇusamāveta - united with Indra and Vishnu; possessing Indra and Vishnu united; like Indra and Vishnu united

Compound type : bahuvrīhi (indra+viṣṇu+samāveta)

• indra – Indra (a Vedic deity)
  proper noun (masculine)
• viṣṇu – Vishnu (a deity)
  proper noun (masculine)
• samāveta – united, joined, come together
  adjective (masculine)
  Past Passive Participle
  Derived from root i- (to go) with upasargas sam- and ā-
  Prefixes: sam+ā
  Root: i (class 2)

मन्दात्मा (mandātmā) - Duryodhana (the dull-minded one) (dull-minded one, foolish soul)

(noun)

Nominative, masculine, singular of mandātman

mandātman - dull-witted, foolish, slow of understanding, ignorant soul

Compound type : bahuvrīhi (manda+ātman)

• manda – dull, slow, weak, foolish
  adjective (masculine)
• ātman – self, soul, mind, essence (ātman)
  noun (masculine)

न (na) - not, no

(indeclinable)

अवबुध्यते (avabudhyate) - understands, comprehends, perceives

(verb)

3rd person , singular, middle, present indicative (laṭ) of avabudh

Prefix: ava

Root: budh (class 4)

संश्रयात् (saṁśrayāt) - from reliance, due to resort, because of dependence

(noun)

Ablative, masculine, singular of saṃśraya

saṁśraya - reliance, resort, dependence, refuge

Prefix: sam

Root: śri

द्रोणभीष्माभ्याम् (droṇabhīṣmābhyām) - by Drona and Bhishma, from Drona and Bhishma

(proper noun)

Ablative, masculine, dual of droṇabhīṣma

droṇabhīṣma - Drona and Bhishma

Compound type : dvandva (droṇa+bhīṣma)

• droṇa – Drona (a proper name, a teacher of archery)
  proper noun (masculine)
• bhīṣma – Bhishma (a proper name, a Kuru elder)
  proper noun (masculine)

कर्णस्य (karṇasya) - of Karna

(proper noun)

Genitive, masculine, singular of karṇa

karṇa - Karna (a proper name, son of Kunti)

च (ca) - and, also

(indeclinable)

विकत्थात् (vikatthāt) - from boasting, due to boasting

(noun)

Ablative, feminine, singular of vikatthā

vikatthā - boasting, self-praise, arrogance