Webster’s Revised Unabridged Dictionary · 1913
Stun
Stun (stŭn), v. t. [imp. & p. p. Stunned; p. pr. & vb. n. Stunning.] [OE. stonien, stownien; either fr. AS. stunian to resound (cf. D. stenen to groan, G. stöhnen, Icel. stynja, Gr. στένειν, Skr. stan to thunder, and E. thunder), or from the same source as E. astonish. √168.] 1. To make senseless or dizzy by violence; to render senseless by a blow, as on the head.
One hung a poleax at his saddlebow, And one a heavy mace to stun the foe. Dryden.
2. To dull or deaden the sensibility of; to overcome; especially, to overpower one's sense of hearing.
And stunned him with the music of the spheres. Pope.
3. To astonish; to overpower; to bewilder.
William was quite stunned at my discourse. De Foe.
Stun, n. The condition of being stunned.