Obs. Also 5 freton. [ad. Fr. fretin broken pieces, ultimately f. L. fractus broken.] (See quots.)

1

1477.  Norton, Ord. Alch., vi. in Ashm. (1652), 96.

        The harder stuffe is called Freton,
Of clipping of other Glasses it come.

2

1688.  R. Holme, Armoury, III. 385/2. Fretten, is waste cut, and broken glasse fit for noe worke. Castaway glasse.

3