महाभारतः mahābhārataḥ - book-7, chapter-132, verse-33

विहन्यमानेष्वस्त्रेषु द्रोणः क्रोधसमन्वितः ।
युधिष्ठिरवधप्रेप्सुर्ब्राह्ममस्त्रमुदैरयत् ॥३३॥

33. vihanyamāneṣvastreṣu droṇaḥ krodhasamanvitaḥ ,
yudhiṣṭhiravadhaprepsurbrāhmamastramudairayat.

33. vihanyamāneṣu astreṣu droṇaḥ krodhasamanvitaḥ
yudhiṣṭhiravadhaprepsuḥ brāhmam astram udairayat

33. astreṣu vihanyamāneṣu krodhasamanvitaḥ
yudhiṣṭhiravadhaprepsuḥ droṇaḥ brāhmam astram udairayat

33. As those missiles were being countered, Droṇa, filled with wrath and desiring to kill Yudhiṣṭhira, discharged the Brahmāstra.

Words meanings summery:

• विहन्यमानेषु (vihanyamāneṣu) - being countered (by Arjuna) (being destroyed, being countered, being thwarted)

• अस्त्रेषु (astreṣu) - as for the missiles (those manifested by Drona) (in missiles, among missiles)

• द्रोणः (droṇaḥ) - Droṇa (Droṇa (name of a teacher/warrior))

• क्रोधसमन्वितः (krodhasamanvitaḥ) - filled with wrath (filled with anger, accompanied by wrath)

• युधिष्ठिरवधप्रेप्सुः (yudhiṣṭhiravadhaprepsuḥ) - desiring to kill Yudhiṣṭhira (desiring the death of Yudhiṣṭhira)

• ब्राह्मम् (brāhmam) - related to Brahmā (belonging to Brahmā, related to Brahmā, divine)

• अस्त्रम् (astram) - Brahmāstra (missile, weapon)

• उदैरयत् (udairayat) - he discharged (he discharged, he threw up, he uttered)

Words meanings and morphology

विहन्यमानेषु (vihanyamāneṣu) - being countered (by Arjuna) (being destroyed, being countered, being thwarted)

(participle)

Locative, neuter, plural of vihanyamāna

vihanyamāna - being destroyed, being struck down, being hindered

Present Passive Participle

From vi-han (to strike down, destroy) + ya (passive) + śānac (present participle).

Prefix: vi

Root: han (class 2)

Note: Part of locative absolute construction. Agrees with astreṣu.

अस्त्रेषु (astreṣu) - as for the missiles (those manifested by Drona) (in missiles, among missiles)

(noun)

Locative, neuter, plural of astra

astra - missile, weapon, arrow

Note: Part of locative absolute construction.

द्रोणः (droṇaḥ) - Droṇa (Droṇa (name of a teacher/warrior))

(proper noun)

Nominative, masculine, singular of droṇa

droṇa - name of a teacher/warrior in Mahabharata, a measure of capacity

Note: Subject of udairayat.

क्रोधसमन्वितः (krodhasamanvitaḥ) - filled with wrath (filled with anger, accompanied by wrath)

(adjective)

Nominative, masculine, singular of krodhasamanvita

krodhasamanvita - filled with anger, accompanied by wrath

Compound type : tṛtīyā-tatpuruṣa (krodha+samanvita)

• krodha – anger, wrath
  noun (masculine)
  Root: krudh (class 4)
• samanvita – accompanied, endowed with, possessed of
  participle (masculine)
  Past Passive Participle
  From sam-anu-i (to go along, to be accompanied).
  Prefixes: sam+anu
  Root: i (class 2)

Note: Qualifies droṇaḥ.

युधिष्ठिरवधप्रेप्सुः (yudhiṣṭhiravadhaprepsuḥ) - desiring to kill Yudhiṣṭhira (desiring the death of Yudhiṣṭhira)

(adjective)

Nominative, masculine, singular of yudhiṣṭhiravadhaprepsu

yudhiṣṭhiravadhaprepsu - desiring the death of Yudhiṣṭhira

Desiderative nominal agent

Compound of Yudhiṣṭhira, vadha (killing), and īpsu (desiring, from āp with desiderative s-suffix). Desiderative root is āp + sa > īps-

Compound type : bahuvrīhi (yudhiṣṭhira+vadha+īpsu)

• yudhiṣṭhira – Yudhiṣṭhira (name of the eldest Pāṇḍava)
  proper noun (masculine)
• vadha – killing, slaughter
  noun (masculine)
  from root han (to strike, kill)
  Root: han (class 2)
• īpsu – desiring to obtain, wishing for
  adjective (masculine)
  Desiderative nominal agent
  From root āp (to obtain) + desiderative s-suffix + u. Desiderative root is īps-
  Root: āp (class 5)

Note: Qualifies droṇaḥ.

ब्राह्मम् (brāhmam) - related to Brahmā (belonging to Brahmā, related to Brahmā, divine)

(adjective)

Accusative, neuter, singular of brāhma

brāhma - belonging to Brahmā, related to Brahmā, divine, sacred

Derived from brahman with aṇ suffix.

Note: Agrees with astram.

अस्त्रम् (astram) - Brahmāstra (missile, weapon)

(noun)

Accusative, neuter, singular of astra

astra - missile, weapon, arrow

Note: Object of udairayat.

उदैरयत् (udairayat) - he discharged (he discharged, he threw up, he uttered)

(verb)

3rd person , singular, active, imperfect (laṅ) of ud-īray

causative of ir

From ud-īrayati, root ir (to move) with upasarga ud (up) and causative suffix.

Prefix: ud

Root: ir (class 1)

Note: Main verb.