Definition of -ious
: -ous <edacious>
Origin 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).