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English word wonderful comes from Old English wundor (Wonder.), Old English -ful (Full of; -ful.)
wundor (Old English)
Wonder.
-ful (Old English)
Full of; -ful.
wundorful (Old English)
Wonderful, glorious.
wondirful (Middle English)
wonderful (English)
(now, _, rare) Tending to excite wonder; surprising, extraordinary.. Surprisingly excellent; very good or admirable, extremely impressive. (dialect) Exceedingly, to a great extent.