महाभारतः mahābhārataḥ - book-3, chapter-83, verse-56

तत्राभिषेकं कुर्वाणः पितृदेवार्चने रतः ।
अश्वमेधमवाप्नोति गतिं च परमां व्रजेत् ॥५६॥

56. tatrābhiṣekaṁ kurvāṇaḥ pitṛdevārcane rataḥ ,
aśvamedhamavāpnoti gatiṁ ca paramāṁ vrajet.

56. tatra abhiṣekam kurvāṇaḥ pitṛdevarcane rataḥ
aśvamedham avāpnoti gatim ca paramām vrajet

56. tatra abhiṣekam kurvāṇaḥ pitṛdevarcane rataḥ
aśvamedham avāpnoti ca paramām gatim vrajet

56. One who performs an ablution there, and is devoted to the worship of ancestors and deities, attains the merit of an Aṣvamedha (Vedic ritual) and reaches the supreme destination.

Words meanings summery:

• तत्र (tatra) - in that sacred place (there, in that place)

• अभिषेकम् (abhiṣekam) - a ritual bath (ablution, ritual bath, consecration)

• कुर्वाणः (kurvāṇaḥ) - one who is performing (performing, doing, making)

• पितृदेवर्चने (pitṛdevarcane) - in the ritual worship of ancestors and gods (in the worship of ancestors and deities)

• रतः (rataḥ) - actively engaged (devoted, engaged, absorbed)

• अश्वमेधम् (aśvamedham) - the merit of the Aṣvamedha (Vedic ritual) (a horse-Vedic ritual)

• अवाप्नोति (avāpnoti) - attains (attains, obtains, reaches)

• गतिम् (gatim) - the destination (destination, movement, state)

• च (ca) - and (and, also)

• परमाम् (paramām) - the supreme (supreme, highest, ultimate)

• व्रजेत् (vrajet) - would attain/reach (may go, should go, would go, attains)

Words meanings and morphology

तत्र (tatra) - in that sacred place (there, in that place)

(indeclinable)

Locative adverb derived from 'tad' (that).

अभिषेकम् (abhiṣekam) - a ritual bath (ablution, ritual bath, consecration)

(noun)

Accusative, masculine, singular of abhiṣeka

abhiṣeka - ablution, ritual bath, consecration

From abhi-ṣic (to sprinkle).

Prefix: abhi

Root: ṣic (class 6)

कुर्वाणः (kurvāṇaḥ) - one who is performing (performing, doing, making)

(adjective)

Nominative, masculine, singular of kurvāṇa

kurvāṇa - performing, doing

Present Active Participle (Ātmanepada)

From root kṛ (to do) with śānac suffix, used as an adjective modifying an implied subject.

Root: kṛ (class 8)

पितृदेवर्चने (pitṛdevarcane) - in the ritual worship of ancestors and gods (in the worship of ancestors and deities)

(noun)

Locative, neuter, singular of pitṛdevarcana

pitṛdevarcana - worship of ancestors and deities

Compound noun, where 'pitṛdeva' is a Dvandva compound ('ancestors and deities'), and 'pitṛdevarcana' is a Ṣaṣṭhī-tatpuruṣa ('worship of pitṛdevas').

Compound type : ṣaṣṭhī-tatpuruṣa (pitṛdeva+arcana)

• pitṛdeva – ancestors and deities
  noun (masculine)
  Dvandva compound of 'pitṛ' (ancestor) and 'deva' (deity).
• arcana – worship, adoration
  noun (neuter)
  From root arc (to worship).
  Root: arc (class 1)

रतः (rataḥ) - actively engaged (devoted, engaged, absorbed)

(adjective)

Nominative, masculine, singular of rata

rata - delighted, pleased, devoted, engaged

Past Passive Participle

From root ram (to delight, be pleased).

Root: ram (class 1)

Note: Used here as an adjective, agreeing with the implied subject of 'kurvāṇaḥ'.

अश्वमेधम् (aśvamedham) - the merit of the Aṣvamedha (Vedic ritual) (a horse-Vedic ritual)

(noun)

Accusative, masculine, singular of aśvamedha

aśvamedha - horse-Vedic ritual, a great Vedic ritual

Compound: aśva (horse) + medha (Vedic ritual).

Compound type : tatpuruṣa (aśva+medha)

• aśva – horse
  noun (masculine)
• medha – Vedic ritual, oblation
  noun (masculine)
  From root medh (to be fat, thrive, sacrifice).
  Root: medh (class 1)

अवाप्नोति (avāpnoti) - attains (attains, obtains, reaches)

(verb)

3rd person , singular, active, present (lat) of avāp

From prefix ava + root āp (to obtain).

Prefix: ava

Root: āp (class 5)

गतिम् (gatim) - the destination (destination, movement, state)

(noun)

Accusative, feminine, singular of gati

gati - going, movement, path, destination, state

Derived from root gam (to go).

Root: gam (class 1)

च (ca) - and (and, also)

(indeclinable)

परमाम् (paramām) - the supreme (supreme, highest, ultimate)

(adjective)

Accusative, feminine, singular of parama

parama - supreme, highest, ultimate, best

Superlative of para (other, distant).

Note: Agrees with 'gatim'.

व्रजेत् (vrajet) - would attain/reach (may go, should go, would go, attains)

(verb)

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

Root: vraj (class 1)

Note: Denotes potential or desired action.