wondrous (adj.)

Old English wundor "marvelous thing, miracle, object of astonishment," from Proto-Germanic *wundran (source also of Old Saxon wundar, Middle Dutch, Dutch wonder, Old High German wuntar, German wunder, Old Norse undr), of unknown origin. In Middle English it also came to mean the emotion associated with such a sight (late 13c.). To be no wonder was in Old English. The original wonder drug (1939) was Sulfanilamide.

see wondrous.