ceafor : four
The Illunse word for four is ceafor. Ceafor is a unusual British masculine first name. In Old English ceafor means beetle, cockchafer.
This word is a mixture of the Old English word for four féower and the Latin word for four quattuor. The c comes from transliterating the Latin q to cw.
My previous Illunse word for four was ceuwor. I think my new word, ceafor, is easier to pronounce.
Here's a link to my post for Four, in J.R.R. Tolkien's words.