महाभारतः mahābhārataḥ - book-12, chapter-273, verse-60

एवं शक्रेण कौरव्य बुद्धिसौक्ष्म्यान्महासुरः ।
उपायपूर्वं निहतो वृत्रोऽथामिततेजसा ॥६०॥

60. evaṁ śakreṇa kauravya buddhisaukṣmyānmahāsuraḥ ,
upāyapūrvaṁ nihato vṛtro'thāmitatejasā.

60. evam śakreṇa kauravya buddhisaūkṣmyāt mahāsuraḥ
upāyapūrvam nihataḥ vṛtraḥ atha amitatejasā

60. kauravya evam śakreṇa amitatejasā buddhisaūkṣmyāt
upāyapūrvam mahāsuraḥ vṛtraḥ atha nihataḥ

60. O descendant of Kuru, in this manner, the great Asura Vṛtra was slain by Indra, who, with subtle intelligence and immeasurable power, employed a pre-planned stratagem (upāya).

Words meanings summery:

• एवम् (evam) - in this manner (thus, in this manner, so)

• शक्रेण (śakreṇa) - by Indra

• कौरव्य (kauravya) - O descendant of Kuru

• बुद्धिसऊक्ष्म्यात् (buddhisaūkṣmyāt) - through subtle intelligence (from subtle intelligence, by keen intellect)

• महासुरः (mahāsuraḥ) - the great Asura (great Asura, great demon)

• उपायपूर्वम् (upāyapūrvam) - employing a pre-planned stratagem (upāya) (preceded by means/expedients, planned by strategy)

• निहतः (nihataḥ) - was slain (killed, slain, destroyed)

• वृत्रः (vṛtraḥ) - Vṛtra (Vritra)

• अथ (atha) - then (then, now, moreover)

• अमिततेजसा (amitatejasā) - by immeasurable power (by one of immeasurable valor/energy, by one with boundless radiance)

Words meanings and morphology

एवम् (evam) - in this manner (thus, in this manner, so)

(indeclinable)

Note: Adverb of manner.

शक्रेण (śakreṇa) - by Indra

(proper noun)

Instrumental, masculine, singular of śakra

śakra - Indra (name of the king of gods), powerful, mighty

Note: Agent in the passive construction 'nihataḥ'.

कौरव्य (kauravya) - O descendant of Kuru

(proper noun)

Vocative, masculine, singular of kauravya

kauravya - descendant of Kuru (epithet for various Kuru princes, e.g., Yudhiṣṭhira, Duryodhana)

Patronymic from Kuru.

Note: Addressed to a Kuru prince.

बुद्धिसऊक्ष्म्यात् (buddhisaūkṣmyāt) - through subtle intelligence (from subtle intelligence, by keen intellect)

(noun)

Ablative, neuter, singular of buddhisaūkṣmya

buddhisaūkṣmya - subtlety of intellect, keenness of mind

Compound of buddhi (intellect) and saūkṣmya (subtlety).

Compound type : tatpuruṣa (buddhi+sūkṣmya)

• buddhi – intellect, understanding, perception
  noun (feminine)
  From root √budh (to know, perceive).
  Root: budh (class 1)
• sūkṣmya – subtlety, minuteness, keenness
  noun (neuter)
  Derived from sūkṣma (subtle) with suffix -ya.

Note: Indicates cause or means.

महासुरः (mahāsuraḥ) - the great Asura (great Asura, great demon)

(noun)

Nominative, masculine, singular of mahāsura

mahāsura - great Asura, mighty demon

Compound of mahā (great) and asura (demon).

Compound type : karmadhāraya (mahā+asura)

• mahā – great, mighty, large
  adjective
• asura – demon, evil spirit, anti-god
  noun (masculine)

Note: Predicate nominative for Vṛtra (or adjective to Vṛtra as Vṛtra is the subject).

उपायपूर्वम् (upāyapūrvam) - employing a pre-planned stratagem (upāya) (preceded by means/expedients, planned by strategy)

(indeclinable)

Compound of upāya (means, stratagem) and pūrva (before, preceding). Used adverbially here.

Compound type : bahuvrīhi (upāya+pūrva)

• upāya – means, expedient, stratagem, device
  noun (masculine)
  From upa- + root √i (to go).
  Prefix: upa
  Root: i (class 2)
• pūrva – before, former, preceding, eastern
  adjective (masculine)

Note: Functions as an adverb modifying 'nihataḥ'.

निहतः (nihataḥ) - was slain (killed, slain, destroyed)

(adjective)

Nominative, masculine, singular of nihata

nihata - killed, slain, destroyed, struck down

past passive participle

Past passive participle from root √han (to strike, kill) with prefix ni-.

Prefix: ni

Root: han (class 2)

Note: Agrees with 'vṛtraḥ'.

वृत्रः (vṛtraḥ) - Vṛtra (Vritra)

(proper noun)

Nominative, masculine, singular of vṛtra

vṛtra - Vritra (a Vedic asura, personification of drought, slain by Indra)

Note: Subject of the passive verb 'nihataḥ'.

अथ (atha) - then (then, now, moreover)

(indeclinable)

Note: Connective particle.

अमिततेजसा (amitatejasā) - by immeasurable power (by one of immeasurable valor/energy, by one with boundless radiance)

(adjective)

Instrumental, masculine, singular of amitatejas

amitatejas - of immeasurable valor/energy/radiance

Compound of amita (immeasurable) and tejas (valor, energy, radiance).

Compound type : bahuvrīhi (amita+tejas)

• amita – immeasurable, infinite, boundless
  adjective (masculine)
  past passive participle
  Negative prefix 'a-' + participle from √mā (to measure).
  Prefix: a
  Root: mā (class 2)
• tejas – energy, power, radiance, splendor, vigor
  noun (neuter)

Note: Agrees with 'śakreṇa' (Indra).