महाभारतः mahābhārataḥ - book-14, chapter-61, verse-18

ततः संचोदयामास व्यासो धर्मात्मजं नृपम् ।
अश्वमेधं प्रति तदा ततः सोऽन्तर्हितोऽभवत् ॥१८॥

18. tataḥ saṁcodayāmāsa vyāso dharmātmajaṁ nṛpam ,
aśvamedhaṁ prati tadā tataḥ so'ntarhito'bhavat.

18. tataḥ saṃcodayāmāsa vyāsaḥ dharmātmajam nṛpam
aśvamedham prati tadā tataḥ saḥ antarhitaḥ abhavat

18. tataḥ vyāsaḥ dharmātmajam nṛpam tadā aśvamedham
prati saṃcodayāmāsa tataḥ saḥ antarhitaḥ abhavat

18. Then, Vyasa encouraged the king, Yudhishthira, the son of dharma (dharma), concerning the aśvamedha (Vedic ritual). After that, he (Vyasa) vanished.

Words meanings summery:

• ततः (tataḥ) - then, thereupon (then, thereupon, from that)

• संचोदयामास (saṁcodayāmāsa) - encouraged (urged, incited, encouraged)

• व्यासः (vyāsaḥ) - the sage Vyasa (Vyasa (name of a sage))

• धर्मात्मजम् (dharmātmajam) - Yudhishthira, the son of dharma (dharma) (the son of dharma, one whose soul is dharma, Yudhishthira)

• नृपम् (nṛpam) - the king (Yudhishthira) (king, ruler)

• अश्वमेधम् (aśvamedham) - the aśvamedha (Vedic ritual) (horse Vedic ritual, aśvamedha (Vedic ritual))

• प्रति (prati) - concerning (towards, regarding, concerning)

• तदा (tadā) - at that time (then, at that time)

• ततः (tataḥ) - after that, thereupon (then, thereupon, from that)

• सः (saḥ) - he (Vyasa) (he, that (masculine singular nominative))

• अन्तर्हितः (antarhitaḥ) - vanished (disappeared, vanished, hidden)

• अभवत् (abhavat) - became (vanished) (became, was, happened)

Words meanings and morphology

ततः (tataḥ) - then, thereupon (then, thereupon, from that)

(indeclinable)

indeclinable, derived from pronominal base 'tad'

संचोदयामास (saṁcodayāmāsa) - encouraged (urged, incited, encouraged)

(verb)

3rd person , singular, active, perfect (liṭ) of saṃcud

Perfect active third person singular

Intensive/Causative root cud with prefix sam-

Prefix: sam

Root: cud (class 1)

व्यासः (vyāsaḥ) - the sage Vyasa (Vyasa (name of a sage))

(proper noun)

Nominative, masculine, singular of vyāsa

vyāsa - Vyasa, compiler, arranger

धर्मात्मजम् (dharmātmajam) - Yudhishthira, the son of dharma (dharma) (the son of dharma, one whose soul is dharma, Yudhishthira)

(noun)

Accusative, masculine, singular of dharmātmaja

dharmātmaja - son of dharma, righteous person, Yudhishthira

Compound type : tatpurusha (dharma+ātmaja)

• dharma – constitution, natural law, intrinsic nature, righteousness, duty
  noun (masculine)
  Root: dhṛ (class 1)
• ātmaja – son, self-born
  noun (masculine)
  Root: jan (class 4)

नृपम् (nṛpam) - the king (Yudhishthira) (king, ruler)

(noun)

Accusative, masculine, singular of nṛpa

nṛpa - king, protector of men

Compound type : tatpurusha (nṛ+pa)

• nṛ – man, human
  noun (masculine)
• pa – protector, guardian
  noun (masculine)
  from root pā (to protect)
  Root: pā (class 2)

अश्वमेधम् (aśvamedham) - the aśvamedha (Vedic ritual) (horse Vedic ritual, aśvamedha (Vedic ritual))

(noun)

Accusative, masculine, singular of aśvamedha

aśvamedha - aśvamedha (Vedic ritual), horse sacrifice

Compound type : tatpurusha (aśva+medha)

• aśva – horse
  noun (masculine)
• medha – Vedic ritual, oblation
  noun (masculine)
  from root medh (to mix, purify)
  Root: medh (class 1)

प्रति (prati) - concerning (towards, regarding, concerning)

(indeclinable)

preposition/prefix

तदा (tadā) - at that time (then, at that time)

(indeclinable)

indeclinable, derived from pronominal base 'tad'

ततः (tataḥ) - after that, thereupon (then, thereupon, from that)

(indeclinable)

indeclinable, derived from pronominal base 'tad'

सः (saḥ) - he (Vyasa) (he, that (masculine singular nominative))

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

अन्तर्हितः (antarhitaḥ) - vanished (disappeared, vanished, hidden)

(adjective)

Nominative, masculine, singular of antarhita

antarhita - disappeared, vanished, hidden

Past Passive Participle

from root dhā with prefixes antar-

Prefix: antar

Root: dhā (class 3)

Note: Used predicatively with abhavat

अभवत् (abhavat) - became (vanished) (became, was, happened)

(verb)

3rd person , singular, active, past imperfect (laṅ) of bhū

Imperfect active third person singular

Root: bhū (class 1)