wondrous

Concise Oxford English Dictionary © 2008 Oxford University Press:
wondrous/ˈwʌndrəs/

▶adjective literary inspiring wonder. ▶adverb archaic wonderfully.

– derivatives
wondrously adverb,
wondrousness noun.

– origin C15: alt. of obs. wonders (adj. and adv.), genitive of wonder, on the pattern of marvellous.