महाभारतः mahābhārataḥ - book-3, chapter-83, verse-33

कुशप्लवनमासाद्य ब्रह्मचारी समाहितः ।
त्रिरात्रमुषितः स्नात्वा अश्वमेधफलं लभेत् ॥३३॥

33. kuśaplavanamāsādya brahmacārī samāhitaḥ ,
trirātramuṣitaḥ snātvā aśvamedhaphalaṁ labhet.

33. kuśaplavanam āsādya brahmacārī samāhitaḥ
trirātram uṣitaḥ snātvā aśvamedhaphalam labhet

33. brahmacārī samāhitaḥ kuśaplavanam āsādya
trirātram uṣitaḥ snātvā aśvamedhaphalam labhet

33. Having reached Kuśaplavana, a celibate student (brahmacārī) who is self-controlled and has stayed there for three nights, then bathes and obtains the fruit of an Aśvamedha Vedic ritual (yajña).

Words meanings summery:

• कुशप्लवनम् (kuśaplavanam) - Kuśaplavana (name of a sacred place)

• आसाद्य (āsādya) - having reached, having approached

• ब्रह्मचारी (brahmacārī) - a celibate student, one who observes celibacy

• समाहितः (samāhitaḥ) - concentrated, composed, self-controlled

• त्रिरात्रम् (trirātram) - for three nights, a period of three nights

• उषितः (uṣitaḥ) - having stayed, resided

• स्नात्वा (snātvā) - having bathed

• अश्वमेधफलम् (aśvamedhaphalam) - fruit of the Aśvamedha (ritual), result of the Aśvamedha (ritual)

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

Words meanings and morphology

कुशप्लवनम् (kuśaplavanam) - Kuśaplavana (name of a sacred place)

(proper noun)

Accusative, neuter, singular of kuśaplavana

kuśaplavana - name of a sacred bathing place

आसाद्य (āsādya) - having reached, having approached

(indeclinable)

absolutive/gerund

from ā-sad (to sit near, approach), suffix lyaP

Prefix: ā

Root: sad (class 1)

ब्रह्मचारी (brahmacārī) - a celibate student, one who observes celibacy

(noun)

Nominative, masculine, singular of brahmacārin

brahmacārin - one who practices celibacy, a student

Compound type : tatpuruṣa (brahman+cārin)

• brahman – sacred knowledge, Veda
  noun (neuter)
  Root: bṛh (class 1)
• cārin – going, moving, practicing
  adjective (masculine)
  agent noun from root car
  Root: car (class 1)

समाहितः (samāhitaḥ) - concentrated, composed, self-controlled

(adjective)

Nominative, masculine, singular of samāhita

samāhita - concentrated, composed, collected

Past Passive Participle

from sam-ā-dhā (to place together, compose)

Prefixes: sam+ā

Root: dhā (class 3)

Note: Describes brahmacārī

त्रिरात्रम् (trirātram) - for three nights, a period of three nights

(noun)

Accusative, neuter, singular of trirātra

trirātra - three nights

Compound type : dvigu (tri+rātra)

• tri – three
  numeral
• rātra – night
  noun (neuter)

Note: Functions adverbially, indicating duration.

उषितः (uṣitaḥ) - having stayed, resided

(adjective)

Nominative, masculine, singular of uṣita

uṣita - stayed, resided, dwelt

Past Passive Participle

from root vas (to dwell, reside)

Root: vas (class 1)

Note: Describes brahmacārī

स्नात्वा (snātvā) - having bathed

(indeclinable)

absolutive/gerund

derived from root snā with suffix tvā

Root: snā (class 2)

अश्वमेधफलम् (aśvamedhaphalam) - fruit of the Aśvamedha (ritual), result of the Aśvamedha (ritual)

(noun)

Accusative, neuter, singular of aśvamedhaphala

aśvamedhaphala - fruit/result of the Aśvamedha

Compound type : tatpuruṣa (aśvamedha+phala)

• aśvamedha – a horse Vedic ritual, an ancient royal Vedic ritual
  noun (masculine)
• phala – fruit, result, consequence
  noun (neuter)
  Root: phal (class 1)

लभेत् (labhet) - one should obtain, one obtains

(verb)

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

Optative Mood, 3rd Person Singular

From root labh (to obtain)

Root: labh (class 1)

Note: Atmanepada verb form