महाभारतः mahābhārataḥ - book-3, chapter-81, verse-73

दृषद्वत्यां नरः स्नात्वा तर्पयित्वा च देवताः ।
अग्निष्टोमातिरात्राभ्यां फलं विन्दति भारत ॥७३॥

73. dṛṣadvatyāṁ naraḥ snātvā tarpayitvā ca devatāḥ ,
agniṣṭomātirātrābhyāṁ phalaṁ vindati bhārata.

73. dṛṣadvatyām naraḥ snātvā tarpayitvā ca devatāḥ
agniṣṭomātirātrābhyām phalam vindati bhārata

73. O Bhārata, a man who bathes in the Dṛṣadvatī and propitiates the gods obtains the merit of performing both the Agniṣṭoma and Atirātra (yajña) sacrifices.

Words meanings summery:

• दृषद्वत्याम् (dṛṣadvatyām) - in the river Dṛṣadvatī

• नरः (naraḥ) - a man, person

• स्नात्वा (snātvā) - having bathed

• तर्पयित्वा (tarpayitvā) - having propitiated, having satisfied

• च (ca) - and, also

• देवताः (devatāḥ) - gods, deities

• अग्निष्टोमातिरात्राभ्याम् (agniṣṭomātirātrābhyām) - by (performing) the Agniṣṭoma and Atirātra sacrifices

• फलम् (phalam) - merit, reward (fruit, result, reward, merit)

• विन्दति (vindati) - obtains, finds, gains

• भारत (bhārata) - O descendant of Bharata, O Bhārata

Words meanings and morphology

दृषद्वत्याम् (dṛṣadvatyām) - in the river Dṛṣadvatī

(proper noun)

Locative, feminine, singular of dṛṣadvatī

dṛṣadvatī - name of a sacred river

नरः (naraḥ) - a man, person

(noun)

Nominative, masculine, singular of nara

nara - man, human being

स्नात्वा (snātvā) - having bathed

(indeclinable)

Absolutive (Gerund)

Derived from √snā

Root: snā (class 2)

तर्पयित्वा (tarpayitvā) - having propitiated, having satisfied

(indeclinable)

Absolutive (Gerund) of Causal

Derived from causal of √tṛp

Root: tṛp (class 4)

च (ca) - and, also

(indeclinable)

देवताः (devatāḥ) - gods, deities

(noun)

Accusative, feminine, plural of devatā

devatā - deity, divinity, god

अग्निष्टोमातिरात्राभ्याम् (agniṣṭomātirātrābhyām) - by (performing) the Agniṣṭoma and Atirātra sacrifices

(noun)

Instrumental, masculine, dual of agniṣṭomātirātra

agniṣṭomātirātra - the Agniṣṭoma and Atirātra sacrifices (names of Soma sacrifices)

Compound type : dvandva (agniṣṭoma+atirātra)

• agniṣṭoma – a type of Soma sacrifice, praise of Agni
  noun (masculine)
• atirātra – a type of Soma sacrifice extending beyond one night
  noun (masculine)

Note: Refers to the merit acquired by performing these two yajñas.

फलम् (phalam) - merit, reward (fruit, result, reward, merit)

(noun)

Accusative, neuter, singular of phala

phala - fruit, result, consequence, reward, merit

विन्दति (vindati) - obtains, finds, gains

(verb)

3rd person , singular, active, present (laṭ) of √vid

Present Tense

3rd person singular, active voice, parasmaipada

Root: vid (class 6)

भारत (bhārata) - O descendant of Bharata, O Bhārata

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, an Indian, a name for Arjuna or Yudhiṣṭhira