DictionaryRoot: tonare
Latin

tonare

to thunder

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A woman lifts a cloth from a tiny table to reveal an unexpectedly enormous bouquet; her adult friend recoils slightly with eyes wide and hand over open mouth, visibly greatly surprised.
verb

astonish

uh-STAHN-ish/əˈstɑːnɪʃ/

To surprise someone greatly.

Etymology

The “out” and “thunder” elements evoke leaving someone thunderstruck. The earlier meaning “stun or strike senseless” shifted to overwhelming someone with surprise or wonder.

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