महाभारतः mahābhārataḥ - book-13, chapter-26, verse-43

उर्वशीकृत्तिकायोगे गत्वा यः सुसमाहितः ।
लौहित्ये विधिवत्स्नात्वा पुण्डरीकफलं लभेत् ॥४३॥

43. urvaśīkṛttikāyoge gatvā yaḥ susamāhitaḥ ,
lauhitye vidhivatsnātvā puṇḍarīkaphalaṁ labhet.

43. urvaśīkṛttikāyoge gatvā yaḥ susamāhitaḥ
lauhitye vidhivat snātvā puṇḍarīkaphalam labhet

43. yaḥ susamāhitaḥ urvaśīkṛttikāyoge gatvā
lauhitye vidhivat snātvā puṇḍarīkaphalam labhet

43. A person who, being fully concentrated, goes to the Urvashi-Kritika conjunction and bathes ritually in the Lauhitya River, would obtain the fruit of the Puṇḍarīka (Vedic ritual).

Words meanings summery:

• उर्वशीकृत्तिकायोगे (urvaśīkṛttikāyoge) - in the specific astrological conjunction of the Urvashi and Kritika constellations (in the conjunction of Urvashi and Kritika)

• गत्वा (gatvā) - having gone

• यः (yaḥ) - the person who (who, which)

• सुसमाहितः (susamāhitaḥ) - being deeply focused or attentive (well-composed, concentrated, absorbed)

• लौहित्ये (lauhitye) - in the Lauhitya River (often identified with the Brahmaputra River) (in the Lauhitya)

• विधिवत् (vidhivat) - in accordance with prescribed rituals or injunctions (according to rule, properly, ritually)

• स्नात्वा (snātvā) - having bathed

• पुण्डरीकफलम् (puṇḍarīkaphalam) - the meritorious reward obtained from performing a Pundarika Vedic ritual (the fruit of the Pundarika (ritual))

• लभेत् (labhet) - would obtain, should obtain, might obtain

Words meanings and morphology

उर्वशीकृत्तिकायोगे (urvaśīkṛttikāyoge) - in the specific astrological conjunction of the Urvashi and Kritika constellations (in the conjunction of Urvashi and Kritika)

(noun)

Locative, masculine, singular of urvaśīkṛttikāyoga

urvaśīkṛttikāyoga - conjunction of Urvashi and Kritika

Compound type : tatpuruṣa (urvaśī+kṛttikā+yoga)

• urvaśī – Urvashi (name of an Apsara, also a constellation)
  proper noun (feminine)
• kṛttikā – Kritika (the Pleiades, a constellation)
  proper noun (feminine)
• yoga – conjunction, union, addition, astrological combination
  noun (masculine)
  Root: yuj (class 7)

गत्वा (gatvā) - having gone

(indeclinable)

absolutive (gerund)

root form with -tvā suffix

Root: gam (class 1)

यः (yaḥ) - the person who (who, which)

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

सुसमाहितः (susamāhitaḥ) - being deeply focused or attentive (well-composed, concentrated, absorbed)

(adjective)

Nominative, masculine, singular of susamāhita

susamāhita - well-composed, deeply concentrated, absorbed, mindful

past passive participle

formed from root dhā with prefixes su-, sam-, ā-, and -ta suffix

Prefixes: su+sam+ā

Root: dhā (class 3)

लौहित्ये (lauhitye) - in the Lauhitya River (often identified with the Brahmaputra River) (in the Lauhitya)

(proper noun)

Locative, neuter, singular of lauhitya

lauhitya - name of a river (the Brahmaputra)

विधिवत् (vidhivat) - in accordance with prescribed rituals or injunctions (according to rule, properly, ritually)

(indeclinable)

adverbial suffix -vat

स्नात्वा (snātvā) - having bathed

(indeclinable)

absolutive (gerund)

root form with -tvā suffix

Root: snā (class 2)

पुण्डरीकफलम् (puṇḍarīkaphalam) - the meritorious reward obtained from performing a Pundarika Vedic ritual (the fruit of the Pundarika (ritual))

(noun)

Accusative, neuter, singular of puṇḍarīkaphala

puṇḍarīkaphala - fruit/result of the Pundarika (ritual)

Compound type : tatpuruṣa (puṇḍarīka+phala)

• puṇḍarīka – white lotus; a specific great Vedic ritual (yajña)
  noun (neuter)
• phala – fruit, result, consequence, reward
  noun (neuter)

लभेत् (labhet) - would obtain, should obtain, might obtain

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of labh

Root: labh (class 1)