महाभारतः mahābhārataḥ - book-7, chapter-31, verse-51

स भारतरथश्रेष्ठः सर्वभारतहर्षणः ।
प्रादुश्चक्रे तदाग्नेयमस्त्रमस्त्रविदां वरः ॥५१॥

51. sa bhāratarathaśreṣṭhaḥ sarvabhārataharṣaṇaḥ ,
prāduścakre tadāgneyamastramastravidāṁ varaḥ.

51. saḥ bhāratarathaśreṣṭhaḥ sarvabhārataharṣaṇaḥ
prāduḥ cakre tadā āgneyam astram astravidām varaḥ

51. saḥ bhāratarathaśreṣṭhaḥ sarvabhārataharṣaṇaḥ
astravidām varaḥ tadā āgneyam astram prāduḥ cakre

51. That supreme charioteer among the Bhāratas, who delighted all Bhāratas, and was the best among those skilled in weapons, then manifested the Agneya (fire) weapon.

Words meanings summery:

• सः (saḥ) - he (Karṇa) (he, that)

• भारतरथश्रेष्ठः (bhāratarathaśreṣṭhaḥ) - the supreme charioteer among the Bhāratas (best charioteer among the Bhāratas)

• सर्वभारतहर्षणः (sarvabhārataharṣaṇaḥ) - who delighted all Bhāratas (gladdener of all Bhāratas, one who excites all Bhāratas)

• प्रादुः (prāduḥ) - forth (as in 'brought forth') (into appearance, forth)

• चक्रे (cakre) - he made (manifest) (he did, he made)

• तदा (tadā) - then (then, at that time)

• आग्नेयम् (āgneyam) - the Agneya (fire) (fiery, belonging to Agni, relating to fire)

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

• अस्त्रविदाम् (astravidām) - of those skilled in weapons (of those who know weapons, of weapon-experts)

• वरः (varaḥ) - the best (best, excellent, boon, choice)

Words meanings and morphology

सः (saḥ) - he (Karṇa) (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he

Note: Refers to Karṇa.

भारतरथश्रेष्ठः (bhāratarathaśreṣṭhaḥ) - the supreme charioteer among the Bhāratas (best charioteer among the Bhāratas)

(noun)

Nominative, masculine, singular of bhāratarathaśreṣṭha

bhāratarathaśreṣṭha - best charioteer among the Bhāratas

Compound type : tatpurusha (bhārata+ratha+śreṣṭha)

• bhārata – descendant of Bharata, Indian
  proper noun (masculine)
• ratha – chariot, charioteer, warrior
  noun (masculine)
  Root: ram (class 1)
• śreṣṭha – best, excellent, supreme
  adjective (masculine)

Note: Qualifies Karṇa.

सर्वभारतहर्षणः (sarvabhārataharṣaṇaḥ) - who delighted all Bhāratas (gladdener of all Bhāratas, one who excites all Bhāratas)

(adjective)

Nominative, masculine, singular of sarvabhārataharṣaṇa

sarvabhārataharṣaṇa - gladdener of all Bhāratas

Compound type : tatpurusha (sarva+bhārata+harṣaṇa)

• sarva – all, every
  pronoun (masculine)
• bhārata – descendant of Bharata
  proper noun (masculine)
• harṣaṇa – gladdening, exciting, causing delight
  adjective (masculine)
  causative derivative
  from root hṛṣ (to be excited) with suffix -ana
  Root: hṛṣ (class 4)

Note: Qualifies Karṇa.

प्रादुः (prāduḥ) - forth (as in 'brought forth') (into appearance, forth)

(indeclinable)

Note: Used in conjunction with 'cakre' (from 'kṛ') to mean 'manifested'.

चक्रे (cakre) - he made (manifest) (he did, he made)

(verb)

3rd person , singular, middle, perfect (lit) of kṛ

Root: kṛ (class 8)

Note: Used with 'prāduḥ' to form 'to manifest'.

तदा (tadā) - then (then, at that time)

(indeclinable)

Note: Temporal adverb.

आग्नेयम् (āgneyam) - the Agneya (fire) (fiery, belonging to Agni, relating to fire)

(adjective)

Accusative, neuter, singular of āgneya

āgneya - fiery, relating to Agni, a weapon of Agni

from Agni with suffix -eya

Note: Qualifies 'astram'.

अस्त्रम् (astram) - weapon (weapon, missile)

(noun)

Accusative, neuter, singular of astra

astra - weapon, missile, magical weapon

Root: as (class 4)

Note: Object of 'cakre'.

अस्त्रविदाम् (astravidām) - of those skilled in weapons (of those who know weapons, of weapon-experts)

(noun)

Genitive, masculine, plural of astravid

astravid - one who knows weapons, weapon-expert

Compound type : tatpurusha (astra+vid)

• astra – weapon, missile
  noun (neuter)
  Root: as (class 4)
• vid – knowing, understanding
  adjective (masculine)
  agent noun/adjective
  from root vid (to know)
  Root: vid (class 2)

Note: Genitive plural, describing 'varaḥ'.

वरः (varaḥ) - the best (best, excellent, boon, choice)

(adjective)

Nominative, masculine, singular of vara

vara - best, excellent, choice, boon

Root: vṛ (class 9)

Note: Qualifies Karṇa.