महाभारतः mahābhārataḥ - book-1, chapter-94, verse-20

सर्वास्त्रेषु स निष्णातः पार्थिवेष्वितरेषु च ।
महाबलो महासत्त्वो महावीर्यो महारथः ॥२०॥

20. sarvāstreṣu sa niṣṇātaḥ pārthiveṣvitareṣu ca ,
mahābalo mahāsattvo mahāvīryo mahārathaḥ.

20. sarvāstreṣu sa niṣṇātaḥ pārthiveṣu itareṣu ca
| mahābalaḥ mahāsattvaḥ mahāvīryaḥ mahārathaḥ

20. He was proficient in all weapons, both worldly and divine. He was endowed with great strength, great courage, great valor, and was a mahāratha (a formidable warrior).

Words meanings summery:

• सर्वास्त्रेषु (sarvāstreṣu) - in all weapons

• स (sa) - he

• निष्णातः (niṣṇātaḥ) - skilled, proficient, expert

• पार्थिवेषु (pārthiveṣu) - in earthly (matters/weapons), royal (sciences)

• इतरेषु (itareṣu) - in others

• च (ca) - and

• महाबलः (mahābalaḥ) - greatly strong, mighty

• महासत्त्वः (mahāsattvaḥ) - of great courage, of great essence/being

• महावीर्यः (mahāvīryaḥ) - of great valor/prowess

• महारथः (mahārathaḥ) - a great warrior, one who can fight ten thousand warriors

Words meanings and morphology

सर्वास्त्रेषु (sarvāstreṣu) - in all weapons

(noun)

Locative, neuter, plural of sarvāstra

sarvāstra - all weapons

Compound type : karmadhāraya (sarva+astra)

• sarva – all, every, whole
  adjective (masculine/feminine/neuter)
• astra – missile, weapon (especially one discharged by mantra)
  noun (neuter)

स (sa) - he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

निष्णातः (niṣṇātaḥ) - skilled, proficient, expert

(adjective)

Nominative, masculine, singular of niṣṇāta

niṣṇāta - bathed, skilled, proficient, expert

Past Passive Participle

Derived from the root √snā (to bathe) with upasarga 'nis' (out, completely), meaning 'bathed completely' and hence 'proficient'.

Prefix: nis

Root: snā (class 2)

पार्थिवेषु (pārthiveṣu) - in earthly (matters/weapons), royal (sciences)

(adjective)

Locative, neuter, plural of pārthiva

pārthiva - earthly, terrestrial, royal, king, relating to kings

Note: Refers to worldly weapons or knowledge systems.

इतरेषु (itareṣu) - in others

(pronoun)

Locative, neuter, plural of itara

itara - other, different, another

Note: Refers to other (e.g., divine) weapons or knowledge systems, agreeing with 'pārthiveṣu'.

च (ca) - and

(indeclinable)

महाबलः (mahābalaḥ) - greatly strong, mighty

(adjective)

Nominative, masculine, singular of mahābala

mahābala - of great strength, very powerful, mighty

Compound type : bahuvrihi (mahā+bala)

• mahā – great, mighty, large
  adjective
• bala – strength, power, force
  noun (neuter)

महासत्त्वः (mahāsattvaḥ) - of great courage, of great essence/being

(adjective)

Nominative, masculine, singular of mahāsattva

mahāsattva - of great strength/courage/virtue, noble being, great being

Compound type : bahuvrihi (mahā+sattva)

• mahā – great, mighty, large
  adjective
• sattva – being, existence, essence, spirit, courage, goodness
  noun (neuter)

महावीर्यः (mahāvīryaḥ) - of great valor/prowess

(adjective)

Nominative, masculine, singular of mahāvīrya

mahāvīrya - of great energy/valor/prowess, very energetic

Compound type : bahuvrihi (mahā+vīrya)

• mahā – great, mighty, large
  adjective
• vīrya – valor, prowess, energy, strength, virility
  noun (neuter)

महारथः (mahārathaḥ) - a great warrior, one who can fight ten thousand warriors

(noun)

Nominative, masculine, singular of mahāratha

mahāratha - a great warrior, a hero capable of fighting many warriors (e.g., ten thousand archers)

Compound type : karmadhāraya (mahā+ratha)

• mahā – great, mighty, large
  adjective
• ratha – chariot, warrior (by metonymy for charioteer/fighter)
  noun (masculine)