महाभारतः mahābhārataḥ - book-12, chapter-137, verse-15

अहमस्य करोम्यद्य सदृशीं वैरयातनाम् ।
कृतघ्नस्य नृशंसस्य भृशं विश्वासघातिनः ॥१५॥

15. ahamasya karomyadya sadṛśīṁ vairayātanām ,
kṛtaghnasya nṛśaṁsasya bhṛśaṁ viśvāsaghātinaḥ.

15. aham asya karomi adya sadṛśīm vairayātanām
kṛtaghnasya nṛśaṃsasya bhṛśam viśvāsaghātinaḥ

15. aham adya asya kṛtaghnasya nṛśaṃsasya bhṛśam
viśvāsaghātinaḥ sadṛśīm vairayātanām karomi

15. Today, I will exact a fitting revenge from this ungrateful, cruel, and greatly treacherous betrayer of trust.

Words meanings summery:

• अहम् (aham) - I

• अस्य (asya) - of this one, of him

• करोमि (karomi) - I do, I make, I perform, I exact

• अद्य (adya) - today, now

• सदृशीम् (sadṛśīm) - fitting, appropriate, similar

• वैरयातनाम् (vairayātanām) - revenge, retaliation for hostility

• कृतघ्नस्य (kṛtaghnasya) - of the ungrateful one

• नृशंसस्य (nṛśaṁsasya) - of the cruel one, of the wicked person

• भृशम् (bhṛśam) - greatly, very much, extremely

• विश्वासघातिनः (viśvāsaghātinaḥ) - of the betrayer of trust, of the treacherous one

Words meanings and morphology

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

अस्य (asya) - of this one, of him

(pronoun)

Genitive, masculine, singular of idam

idam - this, these

करोमि (karomi) - I do, I make, I perform, I exact

(verb)

1st person , singular, active, present indicative (laṭ) of kṛ

Root: kṛ (class 8)

अद्य (adya) - today, now

(indeclinable)

सदृशीम् (sadṛśīm) - fitting, appropriate, similar

(adjective)

Accusative, feminine, singular of sadṛśa

sadṛśa - similar, like, suitable, appropriate

वैरयातनाम् (vairayātanām) - revenge, retaliation for hostility

(noun)

Accusative, feminine, singular of vairayātanā

vairayātanā - retaliation of enmity, revenge, vengeance

Compound type : tatpurusha (vaira+yātanā)

• vaira – hostility, enmity, hatred
  noun (neuter)
• yātanā – torment, torture, retribution, punishment
  noun (feminine)

कृतघ्नस्य (kṛtaghnasya) - of the ungrateful one

(adjective)

Genitive, masculine, singular of kṛtaghna

kṛtaghna - ungrateful, destroyer of benefits, treacherous

Compound type : tatpurusha (kṛta+ghna)

• kṛta – done, made, benefit, favor
  adjective (neuter)
  Past Passive Participle
  From root kṛ (to do)
  Root: kṛ (class 8)
• ghna – killer, destroyer, one who injures
  adjective (masculine)
  Suffix -ghna from root han (to strike, kill)
  Root: han (class 2)

नृशंसस्य (nṛśaṁsasya) - of the cruel one, of the wicked person

(adjective)

Genitive, masculine, singular of nṛśaṃsa

nṛśaṁsa - cruel, wicked, fierce, malicious

भृशम् (bhṛśam) - greatly, very much, extremely

(indeclinable)

Note: Adverbial use of neuter accusative singular.

विश्वासघातिनः (viśvāsaghātinaḥ) - of the betrayer of trust, of the treacherous one

(adjective)

Genitive, masculine, singular of viśvāsaghātin

viśvāsaghātin - betrayer of trust, treacherous, perfidious

Compound type : tatpurusha (viśvāsa+ghātin)

• viśvāsa – trust, confidence, faith
  noun (masculine)
• ghātin – killing, destroying, injuring, betraying
  adjective (masculine)
  Agent noun from root han (to strike, kill)
  Root: han (class 2)