From Wiktionary, the free dictionary
Cognate with Cornish -yek.
-iog
- adjectival suffix often indicating an abundance of the root
- adain (“wing”) + -iog → adeiniog (“winged”)
- baich (“club”) + -iog → beichiog (“burdened; pregnant”)
- cwrl (“curl”) + -iog → cyrliog (“curly”)
- gair (“word”) + -iog → geiriog (“wordy”)