महाभारतः mahābhārataḥ - book-12, chapter-27, verse-18

अघातयं च यत्कर्णं समरेष्वपलायिनम् ।
ज्येष्ठं भ्रातरमत्युग्रं को मत्तः पापकृत्तमः ॥१८॥

18. aghātayaṁ ca yatkarṇaṁ samareṣvapalāyinam ,
jyeṣṭhaṁ bhrātaramatyugraṁ ko mattaḥ pāpakṛttamaḥ.

18. aghātayam ca yat karṇam samareṣu apalāyinam
jyeṣṭham bhrātaram atyugram kaḥ mattaḥ pāpakṛttamaḥ

18. ca yat samareṣu apalāyinam jyeṣṭham atyugram
bhrātaram karṇam aghātayam kaḥ mattaḥ pāpakṛttamaḥ

18. And I caused the death of Karṇa, my elder and exceedingly formidable brother, who never retreated in battles. Who is more steeped in sin than I?

Words meanings summery:

• अघातयम् (aghātayam) - I caused to be killed (I caused to kill, I killed)

• च (ca) - and (and, also)

• यत् (yat) - who (relative pronoun referring to Karṇa) (who, which)

• कर्णम् (karṇam) - Karṇa (proper name) (ear, a proper name)

• समरेषु (samareṣu) - in battles (in battles, in wars)

• अपलायिनम् (apalāyinam) - never retreating (not fleeing, intrepid)

• ज्येष्ठम् (jyeṣṭham) - elder (brother) (eldest, greatest, best)

• भ्रातरम् (bhrātaram) - brother

• अत्युग्रम् (atyugram) - exceedingly formidable (very fierce, extremely formidable, very terrible)

• कः (kaḥ) - who

• मत्तः (mattaḥ) - than me (from me, than me)

• पापकृत्तमः (pāpakṛttamaḥ) - most steeped in sin (the most sinful doer, the worst sinner)

Words meanings and morphology

अघातयम् (aghātayam) - I caused to be killed (I caused to kill, I killed)

(verb)

1st person , singular, active, past imperfect (laṅ) of ghātaya

causative aorist/imperfect

First person singular imperfect active of causative of √han (to kill)

Root: han (class 2)

च (ca) - and (and, also)

(indeclinable)

यत् (yat) - who (relative pronoun referring to Karṇa) (who, which)

(pronoun)

Accusative, masculine, singular of yad

yad - which, who, what

Relative pronoun.

कर्णम् (karṇam) - Karṇa (proper name) (ear, a proper name)

(proper noun)

Accusative, masculine, singular of karṇa

karṇa - ear; proper name of a warrior (Karṇa)

Note: Object of 'aghātayam'.

समरेषु (samareṣu) - in battles (in battles, in wars)

(noun)

Locative, masculine, plural of samara

samara - battle, war, conflict

Root: mṛ (class 1)

अपलायिनम् (apalāyinam) - never retreating (not fleeing, intrepid)

(adjective)

Accusative, masculine, singular of apalāyin

apalāyin - not fleeing, not running away, intrepid, firm

Formed from 'a-' (negation) + 'palāyin' (fleeing, from √palā-i 'to flee')

Compound type : nañ-tatpuruṣa (a+palāyin)

• a – not, un-
  indeclinable
  negation prefix
• palāyin – fleeing, running away
  adjective (masculine)
  agent noun/adjective
  from √palā-i (to flee)
  Prefixes: parā+ā
  Root: i (class 2)

ज्येष्ठम् (jyeṣṭham) - elder (brother) (eldest, greatest, best)

(adjective)

Accusative, masculine, singular of jyeṣṭha

jyeṣṭha - eldest, oldest, greatest, best, chief

Superlative degree of 'vṛddha' (old)

Root: vṛdh (class 1)

भ्रातरम् (bhrātaram) - brother

(noun)

Accusative, masculine, singular of bhrātṛ

bhrātṛ - brother

अत्युग्रम् (atyugram) - exceedingly formidable (very fierce, extremely formidable, very terrible)

(adjective)

Accusative, masculine, singular of atyugra

atyugra - very fierce, exceedingly terrible, extremely formidable

Compound of 'ati' (excessive) and 'ugra' (fierce, powerful)

Compound type : karmadhāraya (ati+ugra)

• ati – excessive, beyond, over
  indeclinable
  prefix/adverb
• ugra – fierce, terrible, powerful, strong
  adjective (masculine)

कः (kaḥ) - who

(pronoun)

Nominative, masculine, singular of kim

kim - who, what, which

मत्तः (mattaḥ) - than me (from me, than me)

(pronoun)

Ablative, singular of aham

aham - I

First person singular pronoun.

Note: Used in comparison ('than me').

पापकृत्तमः (pāpakṛttamaḥ) - most steeped in sin (the most sinful doer, the worst sinner)

(adjective)

Nominative, masculine, singular of pāpakṛttama

pāpakṛttama - most sinful doer, greatest sinner

Superlative of 'pāpakṛt' (sinful doer)

Compound type : tatpurusha (pāpa+kṛt)

• pāpa – sin, evil, wicked
  noun (neuter)
• kṛt – doer, maker, one who does
  noun (masculine)
  agent noun
  from √kṛ (to do) with kvip suffix
  Root: kṛ (class 8)