महाभारतः mahābhārataḥ - book-3, chapter-255, verse-7

गजं तु सगजारोहं पदातींश्च चतुर्दश ।
जघान गदया भीमः सैन्धवध्वजिनीमुखे ॥७॥

7. gajaṁ tu sagajārohaṁ padātīṁśca caturdaśa ,
jaghāna gadayā bhīmaḥ saindhavadhvajinīmukhe.

7. gajam tu sagajāroham padātīn ca caturdaśa
jaghāna gadayā bhīmaḥ saindhavadhvajinīmukhe

7. Bhima, using his mace, killed an elephant along with its rider and fourteen foot-soldiers in the vanguard of the Saindhava army.

Words meanings summery:

• गजम् (gajam) - elephant

• तु (tu) - and, but

• सगजारोहम् (sagajāroham) - along with its elephant-rider

• पदातीन् (padātīn) - foot-soldiers

• च (ca) - and

• चतुर्दश (caturdaśa) - fourteen

• जघान (jaghāna) - killed

• गदया (gadayā) - with a mace

• भीमः (bhīmaḥ) - Bhima

• सैन्धवध्वजिनीमुखे (saindhavadhvajinīmukhe) - in the vanguard of the Saindhava army

Words meanings and morphology

गजम् (gajam) - elephant

(noun)

Accusative, masculine, singular of gaja

gaja - an elephant

तु (tu) - and, but

(indeclinable)

सगजारोहम् (sagajāroham) - along with its elephant-rider

(adjective)

Accusative, masculine, singular of sagajāroha

sagajāroha - accompanied by an elephant-rider

Compound type : bahuvrīhi (sa+gajāroha)

• sa – with, accompanied by
  indeclinable
• gajāroha – an elephant-rider
  noun (masculine)

पदातीन् (padātīn) - foot-soldiers

(noun)

Accusative, masculine, plural of padātin

padātin - a foot-soldier, pedestrian

च (ca) - and

(indeclinable)

चतुर्दश (caturdaśa) - fourteen

(numeral)

Note: Agrees with 'padātīn'

जघान (jaghāna) - killed

(verb)

3rd person , singular, active, perfect (lit) of han

Root verb

Root: han (class 2)

गदया (gadayā) - with a mace

(noun)

Instrumental, feminine, singular of gadā

gadā - a mace, club

भीमः (bhīmaḥ) - Bhima

(proper noun)

Nominative, masculine, singular of bhīma

bhīma - Bhima (name of one of the Pandavas); terrible, formidable

सैन्धवध्वजिनीमुखे (saindhavadhvajinīmukhe) - in the vanguard of the Saindhava army

(noun)

Locative, neuter, singular of saindhavadhvajinīmukha

saindhavadhvajinīmukha - the front/vanguard of the Saindhava army

Compound type : tatpuruṣa (saindhava+dhvajinīmukha)

• saindhava – of or belonging to Sindhu, related to Sindhu (Jayadratha)
  adjective (masculine)
  Derived from 'sindhu' (Indus or a region)
• dhvajinīmukha – the front of an army, vanguard
  noun (neuter)