महाभारतः mahābhārataḥ - book-3, chapter-81, verse-13

ततो गच्छेत धर्मज्ञ द्वारपालं तरन्तुकम् ।
तत्रोष्य रजनीमेकां गोसहस्रफलं लभेत् ॥१३॥

13. tato gaccheta dharmajña dvārapālaṁ tarantukam ,
tatroṣya rajanīmekāṁ gosahasraphalaṁ labhet.

13. tataḥ gaccheta dharmajña dvārapālam tarantukam
tatra uṣya rajanīm ekām gosahasraphalam labhet

13. Then, O knower of righteousness (dharma), one should go to Tarantadka, the gatekeeper. Staying there for one night, one obtains the fruit of donating a thousand cows.

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from there

• गच्छेत (gaccheta) - one should go, he should go

• धर्मज्ञ (dharmajña) - O knower of righteousness (dharma) (vocative) (knower of righteousness, one who knows natural law (dharma))

• द्वारपालम् (dvārapālam) - gatekeeper

• तरन्तुकम् (tarantukam) - Tarantadka (proper name)

• तत्र (tatra) - there, in that place

• उष्य (uṣya) - having stayed, having dwelt

• रजनीम् (rajanīm) - night

• एकाम् (ekām) - one, a single

• गोसहस्रफलम् (gosahasraphalam) - the fruit of donating a thousand cows (the fruit of a thousand cows)

• लभेत् (labhet) - one should obtain, one should gain

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from there

(indeclinable)

From tad (that) with tas- suffix.

गच्छेत (gaccheta) - one should go, he should go

(verb)

3rd person , singular, active, optative (vidhiliṅ) of gaccheta

Optative Active

Third person singular optative mood, active voice.

Root: gam (class 1)

धर्मज्ञ (dharmajña) - O knower of righteousness (dharma) (vocative) (knower of righteousness, one who knows natural law (dharma))

(noun)

Vocative, masculine, singular of dharmajña

dharmajña - knower of natural law (dharma), righteous, dutiful

Compound of dharma and jña (knower).

Compound type : tatpurusha (dharma+jña)

• dharma – natural law, righteousness, duty, virtue, constitution
  noun (masculine)
  Root: dhṛ (class 1)
• jña – knower, understanding
  adjective
  Derived from root √jñā (to know).
  Root: jñā (class 9)

द्वारपालम् (dvārapālam) - gatekeeper

(noun)

Accusative, masculine, singular of dvārapāla

dvārapāla - gatekeeper, doorkeeper

Compound of dvāra (gate) and pāla (protector, keeper).

Compound type : tatpurusha (dvāra+pāla)

• dvāra – door, gate
  noun (neuter)
• pāla – protector, keeper, guardian
  noun (masculine)
  Derived from root √pā (to protect).
  Root: pā (class 2)

Note: Object of gaccheta.

तरन्तुकम् (tarantukam) - Tarantadka (proper name)

(proper noun)

Accusative, masculine, singular of tarantuka

tarantuka - name of a gatekeeper

Note: Agrees with dvārapālam.

तत्र (tatra) - there, in that place

(indeclinable)

From tad (that) with tra suffix.

Note: Refers to the place of Tarantadka.

उष्य (uṣya) - having stayed, having dwelt

(indeclinable)

Absolutive / Gerund

Derived from root √vas (to dwell, stay) by saṃprasāraṇa (va -> u).

Root: vas (class 1)

रजनीम् (rajanīm) - night

(noun)

Accusative, feminine, singular of rajanī

rajanī - night

Note: Duration of uṣya.

एकाम् (ekām) - one, a single

(adjective)

Accusative, feminine, singular of eka

eka - one, a single, unique

Note: Agrees with rajanīm.

गोसहस्रफलम् (gosahasraphalam) - the fruit of donating a thousand cows (the fruit of a thousand cows)

(noun)

Accusative, neuter, singular of gosahasraphala

gosahasraphala - the fruit/reward of (donating) a thousand cows

Compound of go (cow), sahasra (thousand), and phala (fruit, reward).

Compound type : tatpurusha (go+sahasra+phala)

• go – cow, ox; ray of light
  noun (masculine/feminine)
• sahasra – thousand
  numeral (neuter)
• phala – fruit, reward, result
  noun (neuter)

Note: Object of labhet.

लभेत् (labhet) - one should obtain, one should gain

(verb)

3rd person , singular, active, optative (vidhiliṅ) of labhet

Optative Active

Third person singular optative mood, active voice. While typically labheta (ātmanepada), labhet (parasmaipada) is also attested.

Root: labh (class 1)

Note: While typically `labheta` (ātmanepada), `labhet` (parasmaipada) is attested in classical Sanskrit.