वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-27, verse-19

सुमहद्वैष्णवं यत्तदतिसृष्टं महर्षिणा ।
वरं तद्धनुरुद्यम्य खरं समभिधावत ॥१९॥

19. sumahadvaiṣṇavaṃ yattadatisṛṣṭaṃ maharṣiṇā ,
varaṃ taddhanurudyamya kharaṃ samabhidhāvata.

19. sumahat vaiṣṇavam yat tat atisṛṣṭam maharṣiṇā
varam tat dhanuḥ udyamya kharam samabhidhāvata

19. maharṣiṇā atisṛṣṭam yat tat sumahat vaiṣṇavam
varam tat dhanuḥ udyamya kharam samabhidhāvata

19. Raising that most excellent, supremely great Vaishnava (Viṣṇu's) bow, which had been bestowed upon him by the great sage, he rushed towards Khara.

Words meanings summery:

• सुमहत् (sumahat) - supremely great (very great, supremely great)

• वैष्णवम् (vaiṣṇavam) - Vaishnava (Viṣṇu's) (relating to Vishnu, belonging to Vishnu)

• यत् (yat) - which (which, that)

• तत् (tat) - that (bow) (that, it)

• अतिसृष्टम् (atisṛṣṭam) - had been bestowed (upon him) (bestowed, granted, released)

• महर्षिणा (maharṣiṇā) - by the great sage

• वरम् (varam) - most excellent (excellent, best, boon)

• तत् (tat) - that (bow) (that, it)

• धनुः (dhanuḥ) - bow

• उद्यम्य (udyamya) - raising (having lifted, having raised, having taken up)

• खरम् (kharam) - towards Khara (Khara (name of a demon); harsh, sharp)

• समभिधावत (samabhidhāvata) - he rushed towards (he rushed towards, he ran to)

Words meanings and morphology

सुमहत् (sumahat) - supremely great (very great, supremely great)

(adjective)

Accusative, neuter, singular of sumahat

sumahat - very great, most powerful

Compound of su (very, supremely) and mahat (great)

Compound type : karmadhāraya (su+mahat)

• su – good, well, very, excellent
  indeclinable
• mahat – great, large, mighty, eminent
  adjective (neuter)

वैष्णवम् (vaiṣṇavam) - Vaishnava (Viṣṇu's) (relating to Vishnu, belonging to Vishnu)

(adjective)

Accusative, neuter, singular of vaiṣṇava

vaiṣṇava - relating to Vishnu, sacred to Vishnu, a worshipper of Vishnu

Derived from Viṣṇu

यत् (yat) - which (which, that)

(pronoun)

Accusative, neuter, singular of yad

yad - which, what, that

तत् (tat) - that (bow) (that, it)

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

अतिसृष्टम् (atisṛṣṭam) - had been bestowed (upon him) (bestowed, granted, released)

(adjective)

Accusative, neuter, singular of atisṛṣṭa

atisṛṣṭa - bestowed, granted, offered, released

Past Passive Participle

From ati-√sṛj (to cast forth, grant, bestow)

Prefix: ati

Root: sṛj (class 6)

महर्षिणा (maharṣiṇā) - by the great sage

(noun)

Instrumental, masculine, singular of maharṣi

maharṣi - great sage, a revered seer

Compound of mahā (great) and ṛṣi (sage)

Compound type : karmadhāraya (mahā+ṛṣi)

• mahā – great, mighty, large
  adjective (neuter)
• ṛṣi – sage, seer, inspired poet
  noun (masculine)

वरम् (varam) - most excellent (excellent, best, boon)

(adjective)

Accusative, neuter, singular of vara

vara - best, excellent, choice, boon, bridegroom

तत् (tat) - that (bow) (that, it)

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

धनुः (dhanuḥ) - bow

(noun)

Accusative, neuter, singular of dhanus

dhanus - bow

उद्यम्य (udyamya) - raising (having lifted, having raised, having taken up)

(indeclinable)

Absolutive/Gerund

From ud-√yam (to lift up, raise)

Prefix: ud

Root: yam (class 1)

खरम् (kharam) - towards Khara (Khara (name of a demon); harsh, sharp)

(proper noun)

Accusative, masculine, singular of khara

khara - Khara (name of a demon); sharp, harsh, cruel

समभिधावत (samabhidhāvata) - he rushed towards (he rushed towards, he ran to)

(verb)

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

Imperfect Active

Imperfect 3rd singular of sam-abhi-√dhāv (to rush towards)

Prefixes: sam+abhi

Root: dhāv (class 1)

Note: Could also be a 2nd plural imperative, but context suggests 3rd singular action.