वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-11, verse-26

अन्यथा खलु काकुत्स्थ तपस्वी समुदाचरन् ।
दुःसाक्षीव परे लोके स्वानि मांसानि भक्षयेत् ॥२६॥

26. anyathā khalu kākutstha tapasvī samudācaran ,
duḥsākṣīva pare loke svāni māṃsāni bhakṣayet.

26. anyathā khalu kākutstha tapasvī samūdācaran
duḥsākṣī iva pare loke svāni māṃsāni bhakṣayet

26. kākutstha khalu tapasvī anyathā samūdācaran (saḥ)
pare loke duḥsākṣī iva svāni māṃsāni bhakṣayet

26. Indeed, O Kakutstha, an ascetic who behaves otherwise (i.e., contrary to his duties), would, in the next world, consume his own flesh, just like a false witness.

Words meanings summery:

• अन्यथा (anyathā) - contrary to the prescribed conduct for an ascetic (otherwise, differently, in another manner)

• खलु (khalu) - indeed (indeed, surely, certainly)

• काकुत्स्थ (kākutstha) - O Rama (descendant of Kakutstha, O Rama)

• तपस्वी (tapasvī) - an ascetic (an ascetic, one who practices austerity)

• समूदाचरन् (samūdācaran) - behaving (behaving, acting, performing)

• दुःसाक्षी (duḥsākṣī) - false witness

• इव (iva) - just like (like, as, as if)

• परे (pare) - in the next (world) (in the other, in the next, upon the highest)

• लोके (loke) - in the world, in the realm (of afterlife) (in the world, in the realm)

• स्वानि (svāni) - one's own (flesh) (one's own)

• मांसानि (māṁsāni) - flesh (flesh, meat)

• भक्षयेत् (bhakṣayet) - would consume (would eat, should eat, might eat)

Words meanings and morphology

अन्यथा (anyathā) - contrary to the prescribed conduct for an ascetic (otherwise, differently, in another manner)

(indeclinable)

खलु (khalu) - indeed (indeed, surely, certainly)

(indeclinable)

काकुत्स्थ (kākutstha) - O Rama (descendant of Kakutstha, O Rama)

(proper noun)

Vocative, masculine, singular of kākutstha

kākutstha - descendant of Kakutstha, name of Rama

तपस्वी (tapasvī) - an ascetic (an ascetic, one who practices austerity)

(noun)

Nominative, masculine, singular of tapasvin

tapasvin - ascetic, devotee, one who practices austerities (tapas)

derived from tapas with possessive suffix -vin

समूदाचरन् (samūdācaran) - behaving (behaving, acting, performing)

(participle)

Nominative, masculine, singular of samūdācarat

samūdācarat - acting, behaving, performing

present active participle

From verb sam-ud-ā-car (to conduct oneself, to behave) + śatṛ suffix

Prefixes: sam+ud+ā

Root: car (class 1)

दुःसाक्षी (duḥsākṣī) - false witness

(noun)

Nominative, masculine, singular of duḥsākṣin

duḥsākṣin - false witness

Compound type : karmadhāraya (dus+sākṣin)

• dus – bad, evil, difficult
  prefix/indeclinable
• sākṣin – witness
  noun (masculine)

Note: The ī at the end is for the nominative singular of an in ending noun.

इव (iva) - just like (like, as, as if)

(indeclinable)

परे (pare) - in the next (world) (in the other, in the next, upon the highest)

(adjective)

Locative, masculine, singular of para

para - other, next, highest, supreme

Note: Qualifies loke.

लोके (loke) - in the world, in the realm (of afterlife) (in the world, in the realm)

(noun)

Locative, masculine, singular of loka

loka - world, realm, people, division of the universe

स्वानि (svāni) - one's own (flesh) (one's own)

(adjective)

Accusative, neuter, plural of sva

sva - one's own, own, proper

Note: Qualifies māṃsāni.

मांसानि (māṁsāni) - flesh (flesh, meat)

(noun)

Accusative, neuter, plural of māṃsa

māṁsa - flesh, meat, muscle

Note: Object of bhakṣayet.

भक्षयेत् (bhakṣayet) - would consume (would eat, should eat, might eat)

(verb)

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

optative mood, 3rd person singular

Causative of bhaj (or a separate root). bhakṣa is also a nominal stem. Here it is a verb.

Root: bhakṣ (class 10)

Note: The subject is tapasvī.