महाभारतः mahābhārataḥ - book-14, chapter-67, verse-21

चपलाक्षः किलातीव प्रियस्ते मधुसूदन ।
सुतं पश्यस्व तस्येमं ब्रह्मास्त्रेण निपातितम् ॥२१॥

21. capalākṣaḥ kilātīva priyaste madhusūdana ,
sutaṁ paśyasva tasyemaṁ brahmāstreṇa nipātitam.

21. capalākṣaḥ kila atīva priyaḥ te madhusūdana
sutam paśyasva tasya imam brahmāstreṇa nipātitam

21. madhusūdana kila capalākṣaḥ te atīva priyaḥ (āsīt)
tasya imam sutam brahmāstreṇa nipātitam paśyasva

21. O Madhusūdana, they say that the swift-eyed one was exceedingly dear to you. Behold this son of his, struck down by the Brahmāstra.

Words meanings summery:

• चपलाक्षः (capalākṣaḥ) - the swift-eyed one (Duryodhana) (the swift-eyed one, the one with restless eyes)

• किल (kila) - indeed, they say (indeed, surely, they say, it is said)

• अतीव (atīva) - exceedingly (exceedingly, very much, extremely)

• प्रियः (priyaḥ) - dear (to you) (dear, beloved, pleasing)

• ते (te) - to you (to you, for you, your, by you)

• मधुसूदन (madhusūdana) - O Madhusūdana (O slayer of Madhu (epithet of Kṛṣṇa))

• सुतम् (sutam) - this son (son)

• पश्यस्व (paśyasva) - behold (behold, see)

• तस्य (tasya) - of his (referring to the swift-eyed one) (of him, his)

• इमम् (imam) - this (son) (this, him)

• ब्रह्मास्त्रेण (brahmāstreṇa) - by the Brahmāstra (by the Brahmāstra (a divine weapon))

• निपातितम् (nipātitam) - struck down, killed (struck down, killed, felled)

Words meanings and morphology

चपलाक्षः (capalākṣaḥ) - the swift-eyed one (Duryodhana) (the swift-eyed one, the one with restless eyes)

(adjective)

Nominative, masculine, singular of capalākṣa

capalākṣa - swift-eyed, having restless eyes

Compound of capala (restless, swift) and akṣa (eye)

Compound type : bahuvrihi (capala+akṣa)

• capala – restless, unsteady, swift
  adjective
• akṣa – eye
  noun (neuter)

Note: Subject.

किल (kila) - indeed, they say (indeed, surely, they say, it is said)

(indeclinable)

अतीव (atīva) - exceedingly (exceedingly, very much, extremely)

(indeclinable)

from ati (over, beyond) + īva (like, as) or just an intensifier of ati

Note: Adverb modifying priyaḥ.

प्रियः (priyaḥ) - dear (to you) (dear, beloved, pleasing)

(adjective)

Nominative, masculine, singular of priya

priya - dear, beloved

Note: Predicate adjective.

ते (te) - to you (to you, for you, your, by you)

(pronoun)

Dative, singular of yuṣmad

yuṣmad - you

Note: Refers to Kṛṣṇa.

मधुसूदन (madhusūdana) - O Madhusūdana (O slayer of Madhu (epithet of Kṛṣṇa))

(proper noun)

Vocative, masculine, singular of madhusūdana

madhusūdana - Madhusūdana (name of Viṣṇu/Kṛṣṇa)

Compound of madhu (demon's name) and sūdana (slayer)

Compound type : tatpurusha (madhu+sūdana)

• madhu – honey, sweet; name of a demon
  noun (masculine)
• sūdana – slayer, destroyer
  adjective (masculine)
  from root sūd 'to destroy'
  Root: sūd (class 10)

सुतम् (sutam) - this son (son)

(noun)

Accusative, masculine, singular of suta

suta - son

Past Passive Participle (derived noun)

from root sū 'to beget, give birth to'

Root: sū (class 2)

Note: Object of paśyasva.

पश्यस्व (paśyasva) - behold (behold, see)

(verb)

2nd person , singular, active, imperative (loṭ) of paś

Imperative, 2nd Person Singular, Ātmanepada

from root dṛś (with substitution paś) in the imperative mood (loṭ), 2nd person singular, ātmanepada

Root: dṛś (class 1)

तस्य (tasya) - of his (referring to the swift-eyed one) (of him, his)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

Note: Qualifies sutam.

इमम् (imam) - this (son) (this, him)

(pronoun)

Accusative, masculine, singular of idam

idam - this, this here

Note: Qualifies sutam.

ब्रह्मास्त्रेण (brahmāstreṇa) - by the Brahmāstra (by the Brahmāstra (a divine weapon))

(noun)

Instrumental, neuter, singular of brahmāstra

brahmāstra - Brahmāstra (a divine weapon)

Compound of brahman (Brahma) and astra (weapon)

Compound type : tatpurusha (brahman+astra)

• brahman – Brahma (the creator deity); ultimate reality (brahman)
  noun (masculine)
• astra – weapon, missile
  noun (neuter)

Note: Instrument of nipātitam.

निपातितम् (nipātitam) - struck down, killed (struck down, killed, felled)

(adjective)

Accusative, masculine, singular of nipātita

nipātita - struck down, felled, killed

Past Passive Participle

from root pat (to fall) with upasarga ni (down), via causal form nipātay (to cause to fall)

Prefix: ni

Root: pat (class 1)

Note: Agrees with sutam.