Ffenestrog, a. having windows
Ffenestrol, fenestral, windowed
Ffenestru, v. to make windows
Ffer, a what is solid; a severe cold; a concrete; the ankle: a. dense; fixed; solid, strong with cold
Fferadwy, a. congealable
Fferod, n. congealation; numbness
Fferder, n. congealedness
Fferdd, a. solid; firm; thick
Fferedig, a. congealed, fixed
Fferedigaeth, n. congealment