-ious
Concise Oxford English Dictionary © 2008 Oxford University Press:
-ious/ɪəs/
▶suffix (forming adjectives) characterized by; full of: cautious.
– origin from Fr. -ieux, from L. -iosus.
'-ious' also found in these Oxford entries:
atrabilious
- atrocious
- audacious
- capacious
- censorious
- contumacious
- edacious
- efficacious
- ferocious
- fugacious
- loquacious
- lubricious
- mendacious
- mordacious
- precocious
- pugnacious
- rapacious
- sagacious
- salacious
- sequacious
- tenacious
- veracious
- vivacious
- voracious

