महाभारतः mahābhārataḥ - book-3, chapter-157, verse-58

विद्युद्रूपां महाघोरामाकाशे महतीं गदाम् ।
शरैर्बहुभिरभ्यर्छद्भीमसेनः शिलाशितैः ॥५८॥

58. vidyudrūpāṁ mahāghorāmākāśe mahatīṁ gadām ,
śarairbahubhirabhyarchadbhīmasenaḥ śilāśitaiḥ.

58. vidyudrūpām mahāghorām ākāśe mahatīm gadām |
śaraiḥ bahubhiḥ abhyarchat bhīmasenaḥ śilāśitaiḥ

58. Bhimasena struck that great mace, which was lightning-like in form and exceedingly dreadful as it flew through the sky, with many arrows sharpened on stone.

Words meanings summery:

• विद्युद्रूपाम् (vidyudrūpām) - lightning-like in form, having the appearance of lightning

• महाघोराम् (mahāghorām) - very terrible, exceedingly dreadful, immensely fearful

• आकाशे (ākāśe) - in the sky, in space

• महतीम् (mahatīm) - great, mighty, large

• गदाम् (gadām) - mace, club

• शरैः (śaraiḥ) - with arrows

• बहुभिः (bahubhiḥ) - with many, by many

• अभ्यर्छत् (abhyarchat) - he struck, he pierced, he attacked

• भीमसेनः (bhīmasenaḥ) - Bhimasena (name of a warrior)

• शिलाशितैः (śilāśitaiḥ) - with stone-sharpened, sharpened on rock

Words meanings and morphology

विद्युद्रूपाम् (vidyudrūpām) - lightning-like in form, having the appearance of lightning

(adjective)

Accusative, feminine, singular of vidyudrūpa

vidyudrūpa - lightning-like in form, having the appearance of lightning

Compound type : bahuvrihi (vidyut+rūpa)

• vidyut – lightning, flash of lightning
  noun (feminine)
  Root: dyut (class 1)
• rūpa – form, shape, appearance, beauty
  noun (neuter)

महाघोराम् (mahāghorām) - very terrible, exceedingly dreadful, immensely fearful

(adjective)

Accusative, feminine, singular of mahāghora

mahāghora - very terrible, exceedingly dreadful, immensely fearful

Compound type : karmadharaya (mahā+ghora)

• mahā – great, very
  adjective
• ghora – terrible, dreadful, fearful, fierce
  adjective (masculine)

आकाशे (ākāśe) - in the sky, in space

(noun)

Locative, masculine, singular of ākāśa

ākāśa - sky, space, ether

Root: kāś (class 1)

महतीम् (mahatīm) - great, mighty, large

(adjective)

Accusative, feminine, singular of mahat

mahat - great, large, mighty, considerable

गदाम् (gadām) - mace, club

(noun)

Accusative, feminine, singular of gadā

gadā - mace, club

शरैः (śaraiḥ) - with arrows

(noun)

Instrumental, masculine, plural of śara

śara - arrow; reed, rush

बहुभिः (bahubhiḥ) - with many, by many

(adjective)

Instrumental, masculine, plural of bahu

bahu - many, much, abundant

अभ्यर्छत् (abhyarchat) - he struck, he pierced, he attacked

(verb)

3rd person , singular, active, imperfect (laṅ) of abhyarch

Derived from root √ṛch (to go, to move, to obtain) with upasarga abhi- (to go towards, to strike)

Prefix: abhi

Root: ṛch (class 6)

भीमसेनः (bhīmasenaḥ) - Bhimasena (name of a warrior)

(proper noun)

Nominative, masculine, singular of bhīmasena

bhīmasena - Bhimasena (name of the second Pāṇḍava brother)

शिलाशितैः (śilāśitaiḥ) - with stone-sharpened, sharpened on rock

(adjective)

Instrumental, masculine, plural of śilāśita

śilāśita - stone-sharpened, sharpened on a rock

Compound type : tatpurusha (śilā+śita)

• śilā – stone, rock
  noun (feminine)
• śita – sharpened, whetted, keen
  adjective
  Past Passive Participle
  Derived from root √śo (to sharpen)
  Root: śo (class 4)