महाभारतः mahābhārataḥ - book-12, chapter-315, verse-21

अधीयतां भवान्वेदान्सार्धं पुत्रेण धीमता ।
विधुन्वन्ब्रह्मघोषेण रक्षोभयकृतं तमः ॥२१॥

21. adhīyatāṁ bhavānvedānsārdhaṁ putreṇa dhīmatā ,
vidhunvanbrahmaghoṣeṇa rakṣobhayakṛtaṁ tamaḥ.

21. adhīyatām bhavān vedān sārdham putreṇa dhīmatā
vidhunvan brahmaghoṣeṇa rakṣobhayakṛtam tamaḥ

21. bhavān dhīmatā putreṇa sārdham vedān adhīyatām
brahmaghoṣeṇa rakṣobhayakṛtam tamaḥ vidhunvan

21. May you, along with your intelligent son, study the Vedas, dispelling the darkness caused by the fear of Rākṣasas with the sound of the Vedic chants.

Words meanings summery:

• अधीयताम् (adhīyatām) - May you (Vyāsa) study (let him study, may you study)

• भवान् (bhavān) - You, the venerable Vyāsa (you (honorific))

• वेदान् (vedān) - the sacred texts of the Vedas (the Vedas)

• सार्धम् (sārdham) - along with (together with, along with)

• पुत्रेण (putreṇa) - with his son Śuka (by the son, with the son)

• धीमता (dhīmatā) - with his intelligent son (by the intelligent one, with the intelligent one)

• विधुन्वन् (vidhunvan) - dispelling (the darkness) (shaking off, dispelling, removing)

• ब्रह्मघोषेण (brahmaghoṣeṇa) - by the chanting of the Vedas (by the sound of Brahman, by the sound of the Vedas)

• रक्षोभयकृतम् (rakṣobhayakṛtam) - that darkness which is caused by the fear of Rākṣasas (caused by the fear of Rākṣasas)

• तमः (tamaḥ) - the darkness (of ignorance/evil) (darkness)

Words meanings and morphology

अधीयताम् (adhīyatām) - May you (Vyāsa) study (let him study, may you study)

(verb)

3rd person , plural, middle, imperative (loṭ) of adhī

Imperative mood

3rd person plural, Ātmanepada, used honorifically for 'you' (bhavān)

Prefix: adhi

Root: i (class 2)

भवान् (bhavān) - You, the venerable Vyāsa (you (honorific))

(pronoun)

Nominative, masculine, singular of bhavat

bhavat - you, Sir, lord

वेदान् (vedān) - the sacred texts of the Vedas (the Vedas)

(noun)

Accusative, masculine, plural of veda

veda - Veda, sacred knowledge, knowledge

Root: vid (class 2)

सार्धम् (sārdham) - along with (together with, along with)

(indeclinable)

पुत्रेण (putreṇa) - with his son Śuka (by the son, with the son)

(noun)

Instrumental, masculine, singular of putra

putra - son

धीमता (dhīmatā) - with his intelligent son (by the intelligent one, with the intelligent one)

(adjective)

Instrumental, masculine, singular of dhīmat

dhīmat - intelligent, wise, sagacious

Note: Agrees with putreṇa.

विधुन्वन् (vidhunvan) - dispelling (the darkness) (shaking off, dispelling, removing)

(participle)

Nominative, masculine, singular of vidhunvat

vidhunvat - shaking off, dispelling, scattering

Present active participle

Derived from root dhu (to shake) with upasarga vi. Parasmaipada form.

Prefix: vi

Root: dhu (class 5)

ब्रह्मघोषेण (brahmaghoṣeṇa) - by the chanting of the Vedas (by the sound of Brahman, by the sound of the Vedas)

(noun)

Instrumental, masculine, singular of brahmaghoṣa

brahmaghoṣa - sound of the Veda, Vedic chanting, sound of Brahman

Compound type : tatpurusha (brahman+ghoṣa)

• brahman – Brahman, Veda, sacred utterance
  noun (neuter)
  Root: bṛh (class 1)
• ghoṣa – sound, proclamation, roar
  noun (masculine)
  Root: ghuṣ (class 1)

रक्षोभयकृतम् (rakṣobhayakṛtam) - that darkness which is caused by the fear of Rākṣasas (caused by the fear of Rākṣasas)

(adjective)

Accusative, neuter, singular of rakṣobhayakṛta

rakṣobhayakṛta - caused by the fear of demons/Rākṣasas

Compound formed with kṛta (made, caused).

Compound type : tatpurusha (rakṣas+bhaya+kṛta)

• rakṣas – demon, Rākṣasa
  noun (neuter)
  Root: rakṣ (class 1)
• bhaya – fear, dread
  noun (neuter)
  Root: bhī (class 3)
• kṛta – done, made, caused
  participle (neuter)
  Past Passive Participle
  Derived from root kṛ (to do, make).
  Root: kṛ (class 8)

Note: Agrees with tamaḥ.

तमः (tamaḥ) - the darkness (of ignorance/evil) (darkness)

(noun)

Accusative, neuter, singular of tamas

tamas - darkness, gloom, ignorance, quality of inertia

Root: tam (class 4)