Many illiterate people who could not read or write, were able to sign for wages, employment etc by writing an X on the paper and historic papers exist including some of my grandparents on Marriage certificates.
So today, back to basics and counting
|One||Onan, Un||Onan, Oon|
Now I also found a website where you can learn to swear in Cornish, though other than Hogday, I haven't found any takers.. but please check it out. I won't put it here as it could be considered offensive. Still if you swore in Cornish, who would know?