महाभारतः mahābhārataḥ - book-3, chapter-155, verse-23

अतीतानागते विद्वान्कुशलः सर्वधर्मवित् ।
अन्वशासत्स धर्मज्ञः पुत्रवद्भरतर्षभान् ॥२३॥

23. atītānāgate vidvānkuśalaḥ sarvadharmavit ,
anvaśāsatsa dharmajñaḥ putravadbharatarṣabhān.

23. atītānāgate vidvān kuśalaḥ sarvadharmavit
anvaśāsat saḥ dharmajñaḥ putravat bharatarṣabhān

23. The wise one, skilled and knowing all aspects of natural law (dharma) concerning the past and the future, that knower of natural law (dharma) instructed the foremost of the Bharatas (bharatarṣabhān) as if they were his own sons.

Words meanings summery:

• अतीतानागते (atītānāgate) - in the past and future, in both past and future

• विद्वान् (vidvān) - learned, wise, knowing

• कुशलः (kuśalaḥ) - skilled, expert, proficient, well-being

• सर्वधर्मवित् (sarvadharmavit) - knower of all (natural) laws (dharma), one who knows all duties

• अन्वशासत् (anvaśāsat) - he instructed, he taught, he governed

• सः (saḥ) - referring to Vṛṣaparvan (he)

• धर्मज्ञः (dharmajñaḥ) - knower of (natural) law (dharma), righteous

• पुत्रवत् (putravat) - like a son, as sons

• भरतर्षभान् (bharatarṣabhān) - referring to the Pāṇḍavas (the best among the Bharatas, foremost of the Bharatas)

Words meanings and morphology

अतीतानागते (atītānāgate) - in the past and future, in both past and future

(adjective)

Locative, masculine, dual of atītānāgata

atītānāgata - past and future

dvandva compound of atīta and anāgata

Compound type : dvandva (atīta+anāgata)

• atīta – past, gone, passed
  adjective (masculine)
  Past Passive Participle
  from ati + i + kta
  Prefix: ati
  Root: i (class 2)
• anāgata – future, not come
  adjective (masculine)
  Past Passive Participle
  negative particle a + from ā + gam + kta
  Prefix: ā
  Root: gam (class 1)

विद्वान् (vidvān) - learned, wise, knowing

(adjective)

Nominative, masculine, singular of vidvas

vidvas - wise, learned, knowing

Perfect Active Participle

from vid + vasu

Root: vid (class 2)

कुशलः (kuśalaḥ) - skilled, expert, proficient, well-being

(adjective)

Nominative, masculine, singular of kuśala

kuśala - skilled, expert, proficient, well

सर्वधर्मवित् (sarvadharmavit) - knower of all (natural) laws (dharma), one who knows all duties

(noun)

Nominative, masculine, singular of sarvadharmavid

sarvadharmavid - knower of all natural laws (dharma), knower of all duties

compound of sarva, dharma, and vid

Compound type : tatpuruṣa (sarva+dharma+vid)

• sarva – all, every, whole
  adjective (masculine)
• dharma – natural law, constitution, duty, righteousness (dharma)
  noun (masculine)
  from dhṛ + man
  Root: dhṛ (class 1)
• vid – knowing, one who knows
  adjective (masculine)
  derived from verb root
  from vid + kvip
  Root: vid (class 2)

अन्वशासत् (anvaśāsat) - he instructed, he taught, he governed

(verb)

3rd person , singular, active, imperfect (laṅ) of śās

Imperfect Active

from anu + śās

Prefix: anu

Root: śās (class 2)

सः (saḥ) - referring to Vṛṣaparvan (he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he

धर्मज्ञः (dharmajñaḥ) - knower of (natural) law (dharma), righteous

(adjective)

Nominative, masculine, singular of dharmajña

dharmajña - knower of natural law (dharma), righteous

compound of dharma and jña

Compound type : tatpuruṣa (dharma+jña)

• dharma – natural law, constitution, duty, righteousness (dharma)
  noun (masculine)
  from dhṛ + man
  Root: dhṛ (class 1)
• jña – knowing, wise
  adjective (masculine)
  derived from verb root
  from jñā + ka
  Root: jñā (class 9)

पुत्रवत् (putravat) - like a son, as sons

(indeclinable)

from putra + vat (taddhita suffix)

भरतर्षभान् (bharatarṣabhān) - referring to the Pāṇḍavas (the best among the Bharatas, foremost of the Bharatas)

(noun)

Accusative, masculine, plural of bharatarṣabha

bharatarṣabha - best of the Bharatas, foremost among the Bharatas

compound of bharata and ṛṣabha

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – Bharata (ancient king, name of a dynasty)
  proper noun (masculine)
  Root: bhṛ
• ṛṣabha – bull, best, excellent, chief
  noun (masculine)
  from ṛṣ + abha
  Root: ṛṣ