महाभारतः mahābhārataḥ - book-8, chapter-43, verse-49

सूतपुत्रे महेष्वासे दर्शयात्मानमात्मना ।
उत्तमं यत्नमास्थाय प्रत्येहि भरतर्षभ ॥४९॥

49. sūtaputre maheṣvāse darśayātmānamātmanā ,
uttamaṁ yatnamāsthāya pratyehi bharatarṣabha.

49. sūtaputre maheṣvāse darśaya ātmānam ātmanā
uttamam yatnam āsthāya pratyehi bharatarṣabha

49. sūtaputre maheṣvāse bharatarṣabha uttamam
yatnam āsthāya ātmanā ātmānam darśaya pratyehi

49. O son of a charioteer (sūtaputra), O great archer! Demonstrate your true nature (ātman) by your own actions (ātmanā). O best among the Bharatas, having put forth your supreme effort, confront them!

Words meanings summery:

• सूतपुत्रे (sūtaputre) - Addressed to Karna. (O son of the charioteer)

• महेष्वासे (maheṣvāse) - Addressed to Karna. (O great archer)

• दर्शय (darśaya) - show, display, reveal (imperative)

• आत्मानम् (ātmānam) - Refers to Karna's prowess or warrior spirit. (self, soul, one's true nature (ātman))

• आत्मना (ātmanā) - By Karna's own actions or inherent strength. (by the self, by one's own means/power (ātman))

• उत्तमम् (uttamam) - supreme, excellent, utmost

• यत्नम् (yatnam) - effort, exertion

• आस्थाय (āsthāya) - having undertaken, having adopted, having resorted to

• प्रत्येहि (pratyehi) - Implies 'go to fight' or 'face the enemy'. (confront, turn back, go against)

• भरतर्षभ (bharatarṣabha) - Addressed to Karna. (O best of Bharatas)

Words meanings and morphology

सूतपुत्रे (sūtaputre) - Addressed to Karna. (O son of the charioteer)

(proper noun)

Vocative, masculine, singular of sūtaputra

sūtaputra - son of a charioteer

Compound type : tatpuruṣa (sūta+putra)

• sūta – charioteer, bard
  noun (masculine)
• putra – son
  noun (masculine)

महेष्वासे (maheṣvāse) - Addressed to Karna. (O great archer)

(noun)

Vocative, masculine, singular of maheṣvāsa

maheṣvāsa - great archer, great bowman

Compound type : karmadhāraya (mahā+iṣvāsa)

• mahā – great, large, mighty
  adjective
• iṣvāsa – archer, bowman, bow
  noun (masculine)

दर्शय (darśaya) - show, display, reveal (imperative)

(verb)

2nd person , singular, active, imperative (loṭ) of darśaya

Causative stem of dṛś

Root: dṛś (class 10)

आत्मानम् (ātmānam) - Refers to Karna's prowess or warrior spirit. (self, soul, one's true nature (ātman))

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence (ātman)

आत्मना (ātmanā) - By Karna's own actions or inherent strength. (by the self, by one's own means/power (ātman))

(noun)

Instrumental, masculine, singular of ātman

ātman - self, soul, spirit, essence (ātman)

उत्तमम् (uttamam) - supreme, excellent, utmost

(adjective)

Accusative, masculine, singular of uttama

uttama - highest, best, supreme, excellent

यत्नम् (yatnam) - effort, exertion

(noun)

Accusative, masculine, singular of yatna

yatna - effort, exertion, endeavor, attempt

आस्थाय (āsthāya) - having undertaken, having adopted, having resorted to

(indeclinable)

Absolutive (gerund)

Prefix: ā

Root: sthā (class 1)

प्रत्येहि (pratyehi) - Implies 'go to fight' or 'face the enemy'. (confront, turn back, go against)

(verb)

2nd person , singular, active, imperative (loṭ) of pratyehi

Prefix: prati

Root: i (class 2)

भरतर्षभ (bharatarṣabha) - Addressed to Karna. (O best of Bharatas)

(noun)

Vocative, masculine, singular of bharatarṣabha

bharatarṣabha - bull among Bharatas, best of Bharatas (an epithet)

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – descendant of Bharata, an Indian
  proper noun (masculine)
• ṛṣabha – bull, chief, best, excellent
  noun (masculine)