Olwyno, v. to wheel
Olwynog, a. having wheels
Olynol, a following
Olysgrif, n. a postscript
Oll, a. all, whole, everyone
Ollalluog, a. almighty, omnipotent
Ollalluogrwydd, n. almightiness
Ollddifaol, a. all-consuming
Ollddigonol, a. all-sufficient
Ollddoeth, a. all-wise, all-knowing