महाभारतः mahābhārataḥ - book-13, chapter-116, verse-51

अस्वर्ग्यमयशस्यं च रक्षोवद्भरतर्षभ ।
विधिना हि नराः पूर्वं मांसं राजन्नभक्षयन् ॥५१॥

51. asvargyamayaśasyaṁ ca rakṣovadbharatarṣabha ,
vidhinā hi narāḥ pūrvaṁ māṁsaṁ rājannabhakṣayan.

51. asvargyam ayaśasyam ca rakṣovat bharatarṣabha
vidhinā hi narāḥ pūrvam māṃsam rājan abhakṣayan

51. bharatarṣabha rājan asvargyam ayaśasyam ca
rakṣovat hi pūrvam narāḥ vidhinā māṃsam abhakṣayan

51. O best of Bharatas, O King, (eating meat) is not conducive to heaven, brings no renown, and is like (the practice of) demons. Nevertheless, in ancient times, people did indeed consume meat according to the prescribed rules.

Words meanings summery:

• अस्वर्ग्यम् (asvargyam) - not leading to heaven, unheavenly

• अयशस्यम् (ayaśasyam) - not leading to fame, inglorious

• च (ca) - and, also

• रक्षोवत् (rakṣovat) - like a demon, demon-like

• भरतर्षभ (bharatarṣabha) - An address to a prominent member of the Bharata lineage, typically Yudhiṣṭhira or Arjuna. (O best among Bharatas, O bull of Bharatas)

• विधिना (vidhinā) - by rule, according to prescribed method, lawfully

• हि (hi) - indeed, surely, for, because

• नराः (narāḥ) - men, people

• पूर्वम् (pūrvam) - formerly, in ancient times

• मांसम् (māṁsam) - meat, flesh

• राजन् (rājan) - O King

• अभक्षयन् (abhakṣayan) - they ate, they consumed

Words meanings and morphology

अस्वर्ग्यम् (asvargyam) - not leading to heaven, unheavenly

(adjective)

Nominative, neuter, singular of asvargya

asvargya - not leading to heaven, unheavenly, not producing welfare in heaven

From 'a' (negation) + 'svargya'

Note: Implied predicate referring to meat-eating.

अयशस्यम् (ayaśasyam) - not leading to fame, inglorious

(adjective)

Nominative, neuter, singular of ayaśasya

ayaśasya - not leading to fame, inglorious, dishonorable

From 'a' (negation) + 'yaśasya'

Note: Implied predicate referring to meat-eating.

च (ca) - and, also

(indeclinable)

रक्षोवत् (rakṣovat) - like a demon, demon-like

(adjective)

Nominative, neuter, singular of rakṣovat

rakṣovat - like a demon, demon-like, having demons

From 'rakṣas' (demon) + suffix '-vat' (like, possessed of)

Note: Implied predicate referring to meat-eating. The 'vat' suffix makes it behave like an adjective/adverb.

भरतर्षभ (bharatarṣabha) - An address to a prominent member of the Bharata lineage, typically Yudhiṣṭhira or Arjuna. (O best among Bharatas, O bull of Bharatas)

(proper noun)

Vocative, masculine, singular of bharatarṣabha

bharatarṣabha - best of Bharatas, bull among Bharatas

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – Bharata (name of a king, a lineage); an actor
  proper noun (masculine)
• ṛṣabha – bull; chief, best, excellent
  noun (masculine)

विधिना (vidhinā) - by rule, according to prescribed method, lawfully

(noun)

Instrumental, masculine, singular of vidhi

vidhi - rule, method, injunction, ordinance, law

Root: dhā (class 3)

हि (hi) - indeed, surely, for, because

(indeclinable)

नराः (narāḥ) - men, people

(noun)

Nominative, masculine, plural of nara

nara - man, person, male, human being

पूर्वम् (pūrvam) - formerly, in ancient times

(indeclinable)

Accusative singular of 'pūrva' used adverbially.

मांसम् (māṁsam) - meat, flesh

(noun)

Accusative, neuter, singular of māṃsa

māṁsa - meat, flesh

राजन् (rājan) - O King

(noun)

Vocative, masculine, singular of rājan

rājan - king, sovereign

अभक्षयन् (abhakṣayan) - they ate, they consumed

(verb)

3rd person , plural, active, imperfect past (laṅ) of bhakṣ

Imperfect past 3rd plural, root bhakṣ (denom. from bhakṣa).

Root: bhakṣ (class 10)