महाभारतः mahābhārataḥ - book-12, chapter-138, verse-21

कोकिलस्य वराहस्य मेरोः शून्यस्य वेश्मनः ।
व्याडस्य भक्तिचित्रस्य यच्छ्रेष्ठं तत्समाचरेत् ॥२१॥

21. kokilasya varāhasya meroḥ śūnyasya veśmanaḥ ,
vyāḍasya bhakticitrasya yacchreṣṭhaṁ tatsamācaret.

21. kokilasya varāhasya meroḥ śūnyasya veśmanaḥ
vyāḍasya bhakticitrasya yat śreṣṭham tat samācaret

21. yat śreṣṭham tat kokilasya varāhasya meroḥ śūnyasya
veśmanaḥ vyāḍasya bhakticitrasya samācaret

21. One should adopt whatever is best from a cuckoo, a boar, Mount Meru, an empty dwelling, a fierce animal, and a painting depicting devotion (bhakti).

Words meanings summery:

• कोकिलस्य (kokilasya) - of a cuckoo

• वराहस्य (varāhasya) - of a boar, of a wild hog

• मेरोः (meroḥ) - of Meru

• शून्यस्य (śūnyasya) - of an empty, of a void

• वेश्मनः (veśmanaḥ) - of a house, of a dwelling

• व्याडस्य (vyāḍasya) - of a fierce animal, of a rogue, of a snake, of a tiger

• भक्तिचित्रस्य (bhakticitrasya) - of a devotion-painting, of a picture of devotion

• यत् (yat) - whatever, which

• श्रेष्ठम् (śreṣṭham) - best, most excellent

• तत् (tat) - that, it

• समाचरेत् (samācaret) - one should do, one should practice, one should adopt

Words meanings and morphology

कोकिलस्य (kokilasya) - of a cuckoo

(noun)

Genitive, masculine, singular of kokila

kokila - cuckoo

वराहस्य (varāhasya) - of a boar, of a wild hog

(noun)

Genitive, masculine, singular of varāha

varāha - boar, wild hog

मेरोः (meroḥ) - of Meru

(proper noun)

Genitive, masculine, singular of meru

meru - Mount Meru (a mythical mountain)

शून्यस्य (śūnyasya) - of an empty, of a void

(adjective)

Genitive, neuter, singular of śūnya

śūnya - empty, void, desolate, zero

Note: Agrees with 'veśmanaḥ'.

वेश्मनः (veśmanaḥ) - of a house, of a dwelling

(noun)

Genitive, neuter, singular of veśman

veśman - house, dwelling, abode

व्याडस्य (vyāḍasya) - of a fierce animal, of a rogue, of a snake, of a tiger

(noun)

Genitive, masculine, singular of vyāḍa

vyāḍa - fierce animal, rogue, snake, tiger

भक्तिचित्रस्य (bhakticitrasya) - of a devotion-painting, of a picture of devotion

(noun)

Genitive, neuter, singular of bhakticitra

bhakticitra - devotion-painting, picture of devotion

Compound type : tatpuruṣa (bhakti+citra)

• bhakti – devotion, worship, attachment
  noun (feminine)
  Root: bhaj (class 1)
• citra – picture, painting, varied, wonderful
  noun (neuter)

यत् (yat) - whatever, which

(pronoun)

neuter, singular of yad

yad - which, what, whatever (relative pronoun)

Note: Serves as the subject or object of an implicit clause, referring to 'best'.

श्रेष्ठम् (śreṣṭham) - best, most excellent

(adjective)

neuter, singular of śreṣṭha

śreṣṭha - best, most excellent, chief

superlative of praśasya

Note: Adjectival, agreeing with implied neuter subject/object.

तत् (tat) - that, it

(pronoun)

Accusative, neuter, singular of tad

tad - that, it (demonstrative pronoun)

Note: Refers to 'whatever is best'.

समाचरेत् (samācaret) - one should do, one should practice, one should adopt

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of samācar

Prefixes: sam+ā

Root: car (class 1)