महाभारतः mahābhārataḥ - book-5, chapter-186, verse-6

यथाह भरतश्रेष्ठ नारदस्तत्तथा कुरु ।
एतद्धि परमं श्रेयो लोकानां भरतर्षभ ॥६॥

6. yathāha bharataśreṣṭha nāradastattathā kuru ,
etaddhi paramaṁ śreyo lokānāṁ bharatarṣabha.

6. yathā āha bharataśreṣṭha nāradaḥ tat tathā kuru
etat hi paramam śreyaḥ lokānām bharatarṣabha

6. bharataśreṣṭha nāradaḥ yathā āha tat tathā kuru
bharatarṣabha etat hi lokānām paramam śreyaḥ

6. O best among the Bharatas (bharataśreṣṭha), do exactly as Narada has instructed. Indeed, O Bull among the Bharatas (bharatarṣabha), this is the supreme good for all beings (loka).

Words meanings summery:

• यथा (yathā) - as, in which way, just as

• आह (āha) - he said, he spoke

• भरतश्रेष्ठ (bharataśreṣṭha) - O best of Bharatas

• नारदः (nāradaḥ) - Narada (name of a divine sage)

• तत् (tat) - that, it

• तथा (tathā) - thus, so, in that manner

• कुरु (kuru) - do, make, perform

• एतत् (etat) - this, this matter

• हि (hi) - indeed, surely, because

• परमम् (paramam) - supreme, highest, ultimate

• श्रेयः (śreyaḥ) - welfare, good, prosperity, ultimate good

• लोकानाम् (lokānām) - of all beings (of the worlds, of the people, of beings)

• भरतर्षभ (bharatarṣabha) - O bull among Bharatas, O most excellent Bharata

Words meanings and morphology

यथा (yathā) - as, in which way, just as

(indeclinable)

आह (āha) - he said, he spoke

(verb)

3rd person , singular, active, past perfect (liṭ) of ah

Perfect tense, third person singular of root ah.

Root: ah (class 2)

भरतश्रेष्ठ (bharataśreṣṭha) - O best of Bharatas

(noun)

Vocative, masculine, singular of bharataśreṣṭha

bharataśreṣṭha - best of Bharatas, noblest among the Bharatas

Compound: Bharata (name of a king/dynasty) + śreṣṭha (best)

Compound type : ṣaṣṭhī tatpuruṣa (bharata+śreṣṭha)

• bharata – descendant of Bharata, an ancient king; a name; an actor
  proper noun (masculine)
• śreṣṭha – best, most excellent, supreme
  adjective (masculine)
  Superlative form of praśasya (excellent).

नारदः (nāradaḥ) - Narada (name of a divine sage)

(proper noun)

Nominative, masculine, singular of nārada

nārada - Narada (a celestial sage, son of Brahma, known for his wisdom and as a divine messenger)

तत् (tat) - that, it

(pronoun)

Accusative, neuter, singular of tad

tad - that, it, he, she

Note: Refers to Narada's instruction.

तथा (tathā) - thus, so, in that manner

(indeclinable)

कुरु (kuru) - do, make, perform

(verb)

2nd person , singular, active, imperative (loṭ) of kṛ

Imperative, second person singular of root kṛ.

Root: kṛ (class 8)

एतत् (etat) - this, this matter

(pronoun)

Nominative, neuter, singular of etad

etad - this, that (neuter singular nominative/accusative)

Note: Refers to the action being advised.

हि (hi) - indeed, surely, because

(indeclinable)

परमम् (paramam) - supreme, highest, ultimate

(adjective)

Nominative, neuter, singular of parama

parama - supreme, highest, ultimate, greatest, principal

श्रेयः (śreyaḥ) - welfare, good, prosperity, ultimate good

(noun)

Nominative, neuter, singular of śreyas

śreyas - good, welfare, prosperity, superior, more excellent

Comparative form of śrī (splendor, prosperity) or praśasya (excellent), used as a noun.

लोकानाम् (lokānām) - of all beings (of the worlds, of the people, of beings)

(noun)

Genitive, masculine, plural of loka

loka - world, realm, people, mankind, living beings

भरतर्षभ (bharatarṣabha) - O bull among Bharatas, O most excellent Bharata

(noun)

Vocative, masculine, singular of bharatarṣabha

bharatarṣabha - bull among the Bharatas, chief of the Bharatas, most excellent Bharata

Compound: Bharata (name) + ṛṣabha (bull, chief, excellent one)

Compound type : ṣaṣṭhī tatpuruṣa (bharata+ṛṣabha)

• bharata – descendant of Bharata, an ancient king; a name; an actor
  proper noun (masculine)
• ṛṣabha – bull, chief, excellent one, best of its kind
  noun (masculine)