महाभारतः mahābhārataḥ - book-1, chapter-8, verse-4

ऋषिरासीन्महान्पूर्वं तपोविद्यासमन्वितः ।
स्थूलकेश इति ख्यातः सर्वभूतहिते रतः ॥४॥

4. ṛṣirāsīnmahānpūrvaṁ tapovidyāsamanvitaḥ ,
sthūlakeśa iti khyātaḥ sarvabhūtahite rataḥ.

4. ṛṣiḥ āsīt mahān pūrvam tapovidyāsamanvitaḥ
sthūlakeśaḥ iti khyātaḥ sarvabhūtahite rataḥ

4. Formerly, there was a great sage named Sthūlakeśa, who was endowed with asceticism and knowledge, and devoted to the welfare of all beings.

Words meanings summery:

• ऋषिः (ṛṣiḥ) - a sage (a seer, a sage)

• आसीत् (āsīt) - was (was, existed)

• महान् (mahān) - great (great, large, important)

• पूर्वम् (pūrvam) - formerly, in the past (formerly, before, in the past; eastern, prior)

• तपोविद्यासमन्वितः (tapovidyāsamanvitaḥ) - endowed with asceticism and knowledge

• स्थूलकेशः (sthūlakeśaḥ) - the sage Sthūlakeśa (Sthūlakeśa (proper noun))

• इति (iti) - thus, named (thus, so, in this manner, marking direct speech or a name)

• ख्यातः (khyātaḥ) - known, famous (known, famous, proclaimed)

• सर्वभूतहिते (sarvabhūtahite) - in the welfare of all beings (in the welfare of all beings, devoted to the good of all creatures)

• रतः (rataḥ) - devoted (devoted to, engaged in, delighting in)

Words meanings and morphology

ऋषिः (ṛṣiḥ) - a sage (a seer, a sage)

(noun)

Nominative, masculine, singular of ṛṣi

ṛṣi - a seer, a sage, an inspired poet

Root: ṛṣ

आसीत् (āsīt) - was (was, existed)

(verb)

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

Root: as (class 2)

महान् (mahān) - great (great, large, important)

(adjective)

Nominative, masculine, singular of mahat

mahat - great, large, important, mighty

Note: Declines as a present participle.

पूर्वम् (pūrvam) - formerly, in the past (formerly, before, in the past; eastern, prior)

(indeclinable)

Note: Accusative singular neuter of pūrva used adverbially.

तपोविद्यासमन्वितः (tapovidyāsamanvitaḥ) - endowed with asceticism and knowledge

(adjective)

Nominative, masculine, singular of tapovidyāsamanvita

tapovidyāsamanvita - endowed with asceticism and knowledge

Compound type : tatpuruṣa (tapas+vidyā+samanvita)

• tapas – asceticism, penance, heat
  noun (neuter)
• vidyā – knowledge, learning, science
  noun (feminine)
• samanvita – endowed with, possessed of, accompanied by
  adjective
  past participle
  Derived from 'anv-ita' (from anu + i + kta) with prefix sam-
  Prefix: sam
  Root: i (class 2)

स्थूलकेशः (sthūlakeśaḥ) - the sage Sthūlakeśa (Sthūlakeśa (proper noun))

(noun)

Nominative, masculine, singular of sthūlakeśa

sthūlakeśa - one with thick hair (a proper name)

Compound type : bahuvrīhi (sthūla+keśa)

• sthūla – thick, stout, large
  adjective
• keśa – hair, head-hair
  noun (masculine)

इति (iti) - thus, named (thus, so, in this manner, marking direct speech or a name)

(indeclinable)

ख्यातः (khyātaḥ) - known, famous (known, famous, proclaimed)

(adjective)

Nominative, masculine, singular of khyāta

khyāta - known, famous, celebrated

past participle

Derived from root khyā with kta suffix

Root: khyā (class 2)

सर्वभूतहिते (sarvabhūtahite) - in the welfare of all beings (in the welfare of all beings, devoted to the good of all creatures)

(noun)

Locative, neuter, singular of sarvabhūtahita

sarvabhūtahita - welfare of all beings

Compound type : tatpuruṣa (sarva+bhūta+hita)

• sarva – all, every
  pronoun
• bhūta – a being, creature, element, past
  noun (neuter)
  past participle
  from bhū + kta
  Root: bhū (class 1)
• hita – welfare, benefit, good
  noun (neuter)
  past participle
  from dhā + kta
  Root: dhā (class 3)

रतः (rataḥ) - devoted (devoted to, engaged in, delighting in)

(adjective)

Nominative, masculine, singular of rata

rata - delighted, pleased, devoted to, engaged in

past participle

from ram + kta

Root: ram (class 1)