महाभारतः mahābhārataḥ - book-9, chapter-50, verse-18

इत्युक्त्वा स तु तुष्टाव वचोभिर्वै महानदीम् ।
प्रीतः परमहृष्टात्मा यथावच्छृणु पार्थिव ॥१८॥

18. ityuktvā sa tu tuṣṭāva vacobhirvai mahānadīm ,
prītaḥ paramahṛṣṭātmā yathāvacchṛṇu pārthiva.

18. iti uktvā sa tu tuṣṭāva vacobhiḥ vai mahānadīm
prītaḥ paramahṛṣṭātmā yathāvat śṛṇu pārthiva

18. iti uktvā sa tu prītaḥ paramahṛṣṭātmā vacobhiḥ
vai mahānadīm tuṣṭāva pārthiva yathāvat śṛṇu

18. Having spoken thus, he, delighted and with a supremely joyful heart (ātman), praised the great river (Sarasvati) with these words. O ruler (pārthiva), listen to this properly.

Words meanings summery:

• इति (iti) - thus, in this manner

• उक्त्वा (uktvā) - having spoken, having said

• स (sa) - he, that

• तु (tu) - but, indeed, yet

• तुष्टाव (tuṣṭāva) - praised

• वचोभिः (vacobhiḥ) - with words, by words

• वै (vai) - indeed, verily

• महानदीम् (mahānadīm) - referring to Sarasvati (the great river)

• प्रीतः (prītaḥ) - pleased, delighted, satisfied

• परमहृष्टात्मा (paramahṛṣṭātmā) - with a supremely joyful heart (ātman) (with a supremely delighted self/mind)

• यथावत् (yathāvat) - properly, as it should be, accurately

• शृणु (śṛṇu) - listen! hear!

• पार्थिव (pārthiva) - Addressed to a listener, implying a royal status. (O king, O ruler of the earth)

Words meanings and morphology

इति (iti) - thus, in this manner

(indeclinable)

उक्त्वा (uktvā) - having spoken, having said

(indeclinable)

Absolutive (Gerund)

Absolutive form of root 'vac' (to speak)

Root: vac (class 2)

स (sa) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

तु (tu) - but, indeed, yet

(indeclinable)

तुष्टाव (tuṣṭāva) - praised

(verb)

3rd person , singular, active, Perfect (Lit) of √stu

Root: stu (class 2)

वचोभिः (vacobhiḥ) - with words, by words

(noun)

Instrumental, neuter, plural of vacas

vacas - word, speech, utterance

From root 'vac' (to speak)

Root: vac (class 2)

वै (vai) - indeed, verily

(indeclinable)

महानदीम् (mahānadīm) - referring to Sarasvati (the great river)

(noun)

Accusative, feminine, singular of mahānadī

mahānadī - great river

Compound type : karmadhāraya (mahā+nadī)

• mahā – great, large, mighty
  adjective
• nadī – river
  noun (feminine)

प्रीतः (prītaḥ) - pleased, delighted, satisfied

(participle)

Nominative, masculine, singular of prīta

prīta - pleased, delighted, satisfied, beloved

Past Passive Participle

Past Passive Participle of root 'prī' (to be pleased, to love)

Root: prī (class 9)

परमहृष्टात्मा (paramahṛṣṭātmā) - with a supremely joyful heart (ātman) (with a supremely delighted self/mind)

(noun)

Nominative, masculine, singular of paramahṛṣṭātman

paramahṛṣṭātman - one whose self/mind is supremely delighted

Compound type : bahuvrīhi (parama+hṛṣṭa+ātman)

• parama – supreme, highest, excellent
  adjective (masculine/feminine/neuter)
• hṛṣṭa – delighted, joyful, pleased
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  Past Passive Participle of root 'hṛṣ' (to be thrilled, rejoice)
  Root: hṛṣ (class 1)
• ātman – self, soul, spirit, essence, mind
  noun (masculine)

यथावत् (yathāvat) - properly, as it should be, accurately

(indeclinable)

Adverbial suffix -vat added to 'yathā' (as)

शृणु (śṛṇu) - listen! hear!

(verb)

2nd person , singular, active, Imperative (Loṭ) of √śru

Root: śru (class 5)

पार्थिव (pārthiva) - Addressed to a listener, implying a royal status. (O king, O ruler of the earth)

(noun)

Vocative, masculine, singular of pārthiva

pārthiva - king, prince, ruler of the earth

Derived from 'pṛthivī' (earth), meaning 'related to earth' or 'lord of earth'.