महाभारतः mahābhārataḥ - book-3, chapter-83, verse-43

तुङ्गकारण्यमासाद्य ब्रह्मचारी जितेन्द्रियः ।
वेदानध्यापयत्तत्र ऋषिः सारस्वतः पुरा ॥४३॥

43. tuṅgakāraṇyamāsādya brahmacārī jitendriyaḥ ,
vedānadhyāpayattatra ṛṣiḥ sārasvataḥ purā.

43. tuṅgakāraṇyam āsādya brahmacārī jitendriyaḥ
vedān adhyāpayat tatra ṛṣiḥ sārasvataḥ purā

43. Formerly, the sage Sarasvata, a celibate student (brahmacārī) who had controlled his senses, reached the Tungaka forest and taught the Vedas there.

Words meanings summery:

• तुङ्गकारण्यम् (tuṅgakāraṇyam) - Tungaka forest

• आसाद्य (āsādya) - having reached, having obtained

• ब्रह्मचारी (brahmacārī) - a celibate student (brahmacārī) or ascetic (celibate student, one who observes a religious vow)

• जितेन्द्रियः (jitendriyaḥ) - one who has controlled his senses

• वेदान् (vedān) - the Vedas, sacred knowledge

• अध्यापयत् (adhyāpayat) - taught

• तत्र (tatra) - there, in that place

• ऋषिः (ṛṣiḥ) - sage, seer

• सारस्वतः (sārasvataḥ) - Sarasvata, the name of a specific sage (Sarasvata (name of a sage), descendant of Sarasvati)

• पुरा (purā) - formerly, in ancient times, before

Words meanings and morphology

तुङ्गकारण्यम् (tuṅgakāraṇyam) - Tungaka forest

(noun)

Accusative, neuter, singular of tuṅgakāraṇya

tuṅgakāraṇya - Tungaka forest (Tungaka: name of a mountain; araṇya: forest)

Compound type : tatpuruṣa (tuṅgaka+araṇya)

• tuṅgaka – a type of tree, name of a mountain or place
  proper noun (neuter)
• araṇya – forest, wilderness
  noun (neuter)

आसाद्य (āsādya) - having reached, having obtained

(indeclinable)

Absolutive (gerund)

Formed from prefix ā- + root SAD + suffix -ya (for roots ending in a vowel or preceded by a prefix)

Prefix: ā

Root: SAD (class 1)

ब्रह्मचारी (brahmacārī) - a celibate student (brahmacārī) or ascetic (celibate student, one who observes a religious vow)

(noun)

Nominative, masculine, singular of brahmacārin

brahmacārin - one who practices religious studentship and celibacy, a religious student

Compound type : tatpuruṣa (brahman+cārin)

• brahman – sacred utterance, Veda, ultimate reality
  noun (neuter)
• cārin – going, moving, practicing
  adjective (masculine)
  agent noun/adjective
  from root CAR + suffix -in
  Root: CAR (class 1)

जितेन्द्रियः (jitendriyaḥ) - one who has controlled his senses

(adjective)

Nominative, masculine, singular of jitendriya

jitendriya - having controlled the senses

Compound type : bahuvrīhi (jita+indriya)

• jita – conquered, subdued, controlled
  adjective (masculine)
  Past Passive Participle
  from root JI + suffix -ta
  Root: JI (class 1)
• indriya – sense organ, faculty
  noun (neuter)

वेदान् (vedān) - the Vedas, sacred knowledge

(noun)

Accusative, masculine, plural of veda

veda - sacred knowledge, the Vedas

from root VID 'to know'

Root: VID (class 2)

अध्यापयत् (adhyāpayat) - taught

(verb)

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

Causative

From adhi-i (to go over, study) + causative suffix -āpay

Prefix: adhi

Root: I (class 2)

तत्र (tatra) - there, in that place

(indeclinable)

ऋषिः (ṛṣiḥ) - sage, seer

(noun)

Nominative, masculine, singular of ṛṣi

ṛṣi - inspired poet, sage, seer, a Vedic priest

Root: ṚṢ

सारस्वतः (sārasvataḥ) - Sarasvata, the name of a specific sage (Sarasvata (name of a sage), descendant of Sarasvati)

(proper noun)

Nominative, masculine, singular of sārasvata

sārasvata - relating to Sarasvati, a descendant of Sarasvati, a name of a sage

formed with suffix -a from Sarasvatī

पुरा (purā) - formerly, in ancient times, before

(indeclinable)