The definition of astonish is to amaze someone.(verb)
The effect a trapeze artist has on an audience is an example of astonish.
See astonish in Webster's New World College Dictionary
Origin: altered < ME astonien < OFr estoner < VL *extonare (for L attonare) < ex-, intens. + tonare, to thunder
See astonish in American Heritage Dictionary 4
transitive verb as·ton·ished, as·ton·ish·ing, as·ton·ish·es
Origin: Alteration of Middle English astonen
Origin: , from Old French estoner
Origin: , from Vulgar Latin *extonāre
Origin: : Latin ex-, ex-
Origin: + Latin tonāre, to thunder; see (s)tenə- in Indo-European roots.
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