Main Entry: er·ro·ne·ous

Pronunciation: \i-ˈrō-nē-əs, e-\

Function: adjective

Etymology: Middle English, from Latin erroneus, from erron-, erro wanderer, from errare

Date: 15th century

1 : containing or characterized by error : mistaken <erroneous assumptions> <gave an erroneous impression>
2 archaic : wandering

— er·ro·ne·ous·ly adverb

— er·ro·ne·ous·ness noun