Watson gets everything wrong and Holmes is then able to wow his friend with astonishing inferences.
The death toll rose to four last night, and it is astonishing that it's not much higher.
With just over six months before Election Day, the 2012 presidential campaign looks dull but astonishing.
c.1300, astonien, from Old French estoner "to stun, daze, deafen, astound," from Vulgar Latin *extonare, from Latin ex- "out" + tonare "to thunder" (see thunder); so, literally "to leave someone thunderstruck." The modern form (influenced by English verbs in -ish, e.g. distinguish, diminish) is attested from c.1530.
No wonder is thogh that she were astoned [Chaucer, "Clerk's Tale"]Related: Astonished; astonishing; astonishingly.