महाभारतः mahābhārataḥ - book-7, chapter-95, verse-24

अद्य मद्बाणनिहतान्योधमुख्यान्सहस्रशः ।
दृष्ट्वा दुर्योधनो राजा पश्चात्तापं गमिष्यति ॥२४॥

24. adya madbāṇanihatānyodhamukhyānsahasraśaḥ ,
dṛṣṭvā duryodhano rājā paścāttāpaṁ gamiṣyati.

24. adya madbāṇanihatān yodhamukhyān sahasraśaḥ
dṛṣṭvā duryodhanaḥ rājā paścāttāpam gamiṣyati

24. adya rājā duryodhanaḥ madbāṇanihatān yodhamukhyān
sahasraśaḥ dṛṣṭvā paścāttāpam gamiṣyati

24. Today, after witnessing thousands of leading warriors struck down by my arrows, King Duryodhana will experience deep remorse.

Words meanings summery:

• अद्य (adya) - today, now

• मद्बाणनिहतान् (madbāṇanihatān) - of those struck by my arrows

• योधमुख्यान् (yodhamukhyān) - chief warriors, leading combatants

• सहस्रशः (sahasraśaḥ) - by thousands, in thousands

• दृष्ट्वा (dṛṣṭvā) - having seen, after seeing

• दुर्योधनः (duryodhanaḥ) - Duryodhana (name of the eldest Kaurava)

• राजा (rājā) - king

• पश्चात्तापम् (paścāttāpam) - remorse, regret

• गमिष्यति (gamiṣyati) - will go, will attain, will experience

Words meanings and morphology

अद्य (adya) - today, now

(indeclinable)

मद्बाणनिहतान् (madbāṇanihatān) - of those struck by my arrows

(adjective)

Accusative, masculine, plural of madbāṇanihatā

madbāṇanihatā - one whose body is struck by my arrows

Compound type : bahuvrīhi (mad+bāṇa+nihata)

• mad – my
  pronoun
  ablative/genitive stem of asmad, used as a possessive prefix in compounds
• bāṇa – arrow
  noun (masculine)
• nihata – struck down, killed
  Past Passive Participle (masculine)
  Past Passive Participle
  derived from root han with upasarga ni
  Prefix: ni
  Root: han (class 2)

Note: Qualifies 'yodhamukhyān'

योधमुख्यान् (yodhamukhyān) - chief warriors, leading combatants

(noun)

Accusative, masculine, plural of yodhamukhya

yodhamukhya - chief warrior, principal combatant

Compound type : tatpuruṣa (yodha+mukhya)

• yodha – warrior, combatant
  noun (masculine)
  derived from root yudh
  Root: yudh (class 4)
• mukhya – chief, principal, foremost
  adjective (masculine)

सहस्रशः (sahasraśaḥ) - by thousands, in thousands

(indeclinable)

suffix -śaḥ indicating 'by groups of'

दृष्ट्वा (dṛṣṭvā) - having seen, after seeing

(indeclinable)

absolutive (gerund)

derived from root dṛś

Root: dṛś (class 1)

दुर्योधनः (duryodhanaḥ) - Duryodhana (name of the eldest Kaurava)

(proper noun)

Nominative, masculine, singular of duryodhana

duryodhana - Duryodhana (proper noun), difficult to fight

Prefix: dur

Root: yudh (class 4)

राजा (rājā) - king

(noun)

Nominative, masculine, singular of rājan

rājan - king, sovereign, ruler

Root: rāj (class 1)

पश्चात्तापम् (paścāttāpam) - remorse, regret

(noun)

Accusative, masculine, singular of paścāttāpa

paścāttāpa - remorse, regret, repentance

Compound type : tatpuruṣa (paścāt+tāpa)

• paścāt – after, behind, subsequently
  indeclinable
• tāpa – heat, pain, suffering, regret
  noun (masculine)
  derived from root tap
  Root: tap (class 1)

गमिष्यति (gamiṣyati) - will go, will attain, will experience

(verb)

3rd person , singular, active, future (lṛṭ) of gam

Root: gam (class 1)

Note: Used here in the sense of 'will attain' or 'will experience' remorse.