adjective suffix

Definition of -ious

  1. :  -ous edacious

Origin and Etymology of -ious

Middle English, partly from Anglo-French -ious, from Latin -iosus, from -i-, penultimate vowel of some noun stems + -osus -ous; partly from Latin -ius, adjective suffix

Seen and Heard

What made you want to look up -ious? Please tell us where you read or heard it (including the quote, if possible).