In a fretful manner.

ornamental woodwork either carved in low relief or cut through

A saw consisting of a metal frame having a fine-toothed narrow blade held under tension, used in making curved cuts.

To cut with a fretsaw.

plural of fretsaw

Of a stringed instrument, not having frets on the fingerboard. / Without worries.

Such a stringed instrument.

strait; channel.

plural of fretboard

plural of fretum