महाभारतः mahābhārataḥ - book-12, chapter-10, verse-12

यथा शत्रून्घातयित्वा पुरुषः कुरुसत्तम ।
आत्मानं घातयेत्पश्चात्कर्मेदं नस्तथाविधम् ॥१२॥

12. yathā śatrūnghātayitvā puruṣaḥ kurusattama ,
ātmānaṁ ghātayetpaścātkarmedaṁ nastathāvidham.

12. yathā śatrūn ghātayitvā puruṣaḥ kurusattama
ātmānam ghātayet paścāt karma idam naḥ tathāvidham

12. kurusattama yathā puruṣaḥ śatrūn ghātayitvā paścāt
ātmānam ghātayet tathā naḥ idam karma tathāvidham

12. O best of Kurus, just as a person, having slain his enemies, might subsequently kill himself, this action (karma) of ours is exactly like that.

Words meanings summery:

• यथा (yathā) - just as, as, according to

• शत्रून् (śatrūn) - enemies

• घातयित्वा (ghātayitvā) - having caused to be killed, having slain

• पुरुषः (puruṣaḥ) - person, man, human being, the cosmic person (puruṣa)

• कुरुसत्तम (kurusattama) - O best of Kurus

• आत्मानम् (ātmānam) - oneself, the self (ātman), the soul

• घातयेत् (ghātayet) - might kill, should cause to be killed

• पश्चात् (paścāt) - afterwards, subsequently, behind

• कर्म (karma) - this action (karma) of ours (action, deed, ritual, fate (karma))

• इदम् (idam) - this

• नः (naḥ) - our, to us, of us

• तथाविधम् (tathāvidham) - of that kind, similar, of such a nature

Words meanings and morphology

यथा (yathā) - just as, as, according to

(indeclinable)

शत्रून् (śatrūn) - enemies

(noun)

Accusative, masculine, plural of śatru

śatru - enemy, foe, rival

घातयित्वा (ghātayitvā) - having caused to be killed, having slain

(indeclinable)

Absolutive (Gerund) of causative

Derived from the causative stem ghātaya- of the root han.

Root: han (class 2)

पुरुषः (puruṣaḥ) - person, man, human being, the cosmic person (puruṣa)

(noun)

Nominative, masculine, singular of puruṣa

puruṣa - man, person, human being, the Supreme Being, the cosmic person (puruṣa)

कुरुसत्तम (kurusattama) - O best of Kurus

(proper noun)

Vocative, masculine, singular of kurusattama

kurusattama - best among the Kurus, most excellent of the Kurus

Compound type : tatpuruṣa (kuru+sattama)

• kuru – a member of the Kuru dynasty, the Kuru country
  proper noun (masculine)
• sattama – best, most excellent
  adjective (masculine)
  Superlative degree of 'sat' (good, existing).

आत्मानम् (ātmānam) - oneself, the self (ātman), the soul

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, the individual soul (ātman), essence

घातयेत् (ghātayet) - might kill, should cause to be killed

(verb)

3rd person , singular, active, optative (vidhiliṅ) of ghātayet

Optative mood, active voice (causative)

Causative stem ghātaya- from root han (class 2) conjugated in optative active 3rd singular.

Root: han (class 2)

पश्चात् (paścāt) - afterwards, subsequently, behind

(indeclinable)

कर्म (karma) - this action (karma) of ours (action, deed, ritual, fate (karma))

(noun)

Nominative, neuter, singular of karman

karman - action, deed, work, ritual, fate, effect of actions (karma)

Root: kṛ (class 8)

इदम् (idam) - this

(pronoun)

Nominative, neuter, singular of idam

idam - this, this one, here

नः (naḥ) - our, to us, of us

(pronoun)

Genitive, plural of asmad

asmad - I, we

तथाविधम् (tathāvidham) - of that kind, similar, of such a nature

(adjective)

Nominative, neuter, singular of tathāvidha

tathāvidha - of that kind, of such a nature, such

Compound type : bahuvrīhi (tathā+vidha)

• tathā – so, thus, in that manner
  indeclinable
• vidha – kind, sort, manner, form
  noun (masculine)