Hyfeth, a. fallible
Hyfoes, a. of easy manners
Hyfraw, a. being, easily awed
Hyfriw, a. apt to be broken
Hyfrwd, a. being easily heated
Hyfryd, a. cheerful, delightful
Hyfrydedd, n. delightfulness
Hyfrydu, v. to make cheerful
Hyfrydwch, n. delightfulness
Hyfrys, a. apt to be hasty