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
IOU
-ious
IOW
“-ious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/-ious. Accessed 15 Nov. 2024.
derived from Latin -iosus and -ius (adjective suffixes)
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