महाभारतः mahābhārataḥ - book-5, chapter-166, verse-18

माद्रीपुत्रौ तु रथिनौ द्वावेव पुरुषर्षभौ ।
अश्विनाविव रूपेण तेजसा च समन्वितौ ॥१८॥

18. mādrīputrau tu rathinau dvāveva puruṣarṣabhau ,
aśvināviva rūpeṇa tejasā ca samanvitau.

18. mādrīputrau tu rathinau dvau eva puruṣarṣabhau
aśvinau iva rūpeṇa tejasā ca samanvitau

18. tu mādrīputrau dvau eva puruṣarṣabhau rathinau
rūpeṇa ca tejasā aśvinau iva samanvitau

18. And the two sons of Mādrī, both indeed excellent warriors and best among men, are endowed with beauty and might like the two Aśvins.

Words meanings summery:

• माद्रीपुत्रौ (mādrīputrau) - the two sons of Mādrī (the two sons of Mādrī (Nakula and Sahadeva))

• तु (tu) - and (and, but, indeed)

• रथिनौ (rathinau) - two excellent warriors (two charioteers, two warriors)

• द्वौ (dvau) - both (two)

• एव (eva) - indeed (indeed, only, just, exactly)

• पुरुषर्षभौ (puruṣarṣabhau) - two best among men (two bulls among men, two best of men)

• अश्विनौ (aśvinau) - the two Aśvins (the two Aśvins (twin deities))

• इव (iva) - like (like, as, as if, similar to)

• रूपेण (rūpeṇa) - by beauty (by form, by appearance, by beauty)

• तेजसा (tejasā) - by might (by splendor, by might, by energy, by fiery spirit)

• च (ca) - and (and, also, moreover)

• समन्वितौ (samanvitau) - endowed with (endowed with, possessed of, accompanied by)

Words meanings and morphology

माद्रीपुत्रौ (mādrīputrau) - the two sons of Mādrī (the two sons of Mādrī (Nakula and Sahadeva))

(noun)

Nominative, masculine, dual of mādrīputra

mādrīputra - son of Mādrī

Compound type : tatpuruṣa (mādrī+putra)

• mādrī – Mādrī (second wife of Pāṇḍu, mother of Nakula and Sahadeva)
  proper noun (feminine)
• putra – son, child
  noun (masculine)

तु (tu) - and (and, but, indeed)

(indeclinable)

रथिनौ (rathinau) - two excellent warriors (two charioteers, two warriors)

(noun)

Nominative, masculine, dual of rathin

rathin - charioteer, warrior (esp. one fighting from a chariot)

From `ratha` with suffix `-in`.

द्वौ (dvau) - both (two)

(numeral)

एव (eva) - indeed (indeed, only, just, exactly)

(indeclinable)

पुरुषर्षभौ (puruṣarṣabhau) - two best among men (two bulls among men, two best of men)

(noun)

Nominative, masculine, dual of puruṣarṣabha

puruṣarṣabha - bull among men, best of men, excellent man

Compound type : tatpuruṣa (puruṣa+ṛṣabha)

• puruṣa – man, human being, person (puruṣa)
  noun (masculine)
• ṛṣabha – bull, chief, best, excellent
  noun (masculine)

अश्विनौ (aśvinau) - the two Aśvins (the two Aśvins (twin deities))

(proper noun)

Nominative, masculine, dual of aśvin

aśvin - the Aśvins (twin celestial deities, physicians of the gods, eternally young and beautiful)

इव (iva) - like (like, as, as if, similar to)

(indeclinable)

रूपेण (rūpeṇa) - by beauty (by form, by appearance, by beauty)

(noun)

Instrumental, neuter, singular of rūpa

rūpa - form, shape, appearance, beauty, nature

तेजसा (tejasā) - by might (by splendor, by might, by energy, by fiery spirit)

(noun)

Instrumental, neuter, singular of tejas

tejas - splendor, might, fiery energy, brilliance, sharp edge

च (ca) - and (and, also, moreover)

(indeclinable)

समन्वितौ (samanvitau) - endowed with (endowed with, possessed of, accompanied by)

(adjective)

Nominative, masculine, dual of samanvita

samanvita - endowed with, possessed of, accompanied by, furnished with

Past Passive Participle (secondary derivative)

Derived from `anvita` (joined, connected), which is a past passive participle of `anu-i` (to follow), with prefix `sam-` (together, completely).

Prefixes: sam+anu

Root: i (class 2)