महाभारतः mahābhārataḥ - book-1, chapter-48, verse-7

सदस्यश्चाभवद्व्यासः पुत्रशिष्यसहायवान् ।
उद्दालकः शमठकः श्वेतकेतुश्च पञ्चमः ॥७॥

7. sadasyaścābhavadvyāsaḥ putraśiṣyasahāyavān ,
uddālakaḥ śamaṭhakaḥ śvetaketuśca pañcamaḥ.

7. sadasyaḥ ca abhavat vyāsaḥ putraśiṣyasahāyavān
uddālakaḥ śamaṭhakaḥ śvetaketuḥ ca pañcamaḥ

7. Vyasa, accompanied by his sons and disciples, became a member of the assembly. Uddalaka, Shamaṭhaka, and Shvetaketu, who was the fifth (among the listed important members), were also present.

Words meanings summery:

• सदस्यः (sadasyaḥ) - a member of the assembly (of the sacrifice) (a member of an assembly, an assessor)

• च (ca) - and (and, also, moreover)

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

• व्यासः (vyāsaḥ) - Vyasa (Vyasa (a proper name))

• पुत्रशिष्यसहायवान् (putraśiṣyasahāyavān) - accompanied by his sons and disciples (accompanied by sons and disciples, having sons and disciples as companions)

• उद्दालकः (uddālakaḥ) - Uddalaka (Uddalaka (a proper name of a sage))

• शमठकः (śamaṭhakaḥ) - Shamaṭhaka (Shamaṭhaka (a proper name))

• श्वेतकेतुः (śvetaketuḥ) - Shvetaketu (Shvetaketu (a proper name))

• च (ca) - and (and, also, moreover)

• पञ्चमः (pañcamaḥ) - the fifth (member) (fifth)

Words meanings and morphology

सदस्यः (sadasyaḥ) - a member of the assembly (of the sacrifice) (a member of an assembly, an assessor)

(noun)

Nominative, masculine, singular of sadasya

sadasya - a member of an assembly, an assessor, a spectator

From 'sadas' (assembly) + 'ya' (suffix)

च (ca) - and (and, also, moreover)

(indeclinable)

अभवत् (abhavat) - became (became, was)

(verb)

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

Root: bhū (class 1)

व्यासः (vyāsaḥ) - Vyasa (Vyasa (a proper name))

(noun)

Nominative, masculine, singular of vyāsa

vyāsa - Vyasa (a celebrated sage, compiler of the Vedas and author of the Mahabharata)

पुत्रशिष्यसहायवान् (putraśiṣyasahāyavān) - accompanied by his sons and disciples (accompanied by sons and disciples, having sons and disciples as companions)

(adjective)

Nominative, masculine, singular of putraśiṣyasahāyavat

putraśiṣyasahāyavat - accompanied by sons and disciples

Possessive adjective (suffix -vat) of the compound putra-śiṣya-sahāya

Compound type : dvandva-tatpuruṣa (putra+śiṣya+sahāya)

• putra – son, child
  noun (masculine)
• śiṣya – disciple, pupil
  noun (masculine)
• sahāya – companion, helper, associate
  noun (masculine)

उद्दालकः (uddālakaḥ) - Uddalaka (Uddalaka (a proper name of a sage))

(noun)

Nominative, masculine, singular of uddālaka

uddālaka - Uddalaka (name of a celebrated sage, also known as Āruṇi)

शमठकः (śamaṭhakaḥ) - Shamaṭhaka (Shamaṭhaka (a proper name))

(noun)

Nominative, masculine, singular of śamaṭhaka

śamaṭhaka - Shamaṭhaka (a proper name)

श्वेतकेतुः (śvetaketuḥ) - Shvetaketu (Shvetaketu (a proper name))

(noun)

Nominative, masculine, singular of śvetaketu

śvetaketu - Shvetaketu (name of a celebrated sage, son of Uddalaka)

च (ca) - and (and, also, moreover)

(indeclinable)

पञ्चमः (pañcamaḥ) - the fifth (member) (fifth)

(adjective)

Nominative, masculine, singular of pañcama

pañcama - fifth

Ordinal number from pañcan (five)