Ffynegl, n. a furrow
Ffyneglu, v. to furrow
Ffynel, n. an air-hole, a vent
Ffyniant, n. prosperity
Ffyniannus, a. prospering
Ffynnon, n. a fountain, a well, a spring
Ffynnonell, n. an issue
Ffynnoni, v. to rise in springs
Fynnu, v. to prosper
Ffyr, n. a solid body