Peen (?), n. [Cf. G. pinne pane of a hammer.] (a)
A round-edged, or hemispherical, end to the head of a hammer or sledge, used to stretch or bend metal by indentation.
(b)
The sharp-edged end of the head of a mason's hammer.
[Spelt also
pane,
pein, and
piend.]
© Webster 1913.
Peen, v. t.
To draw, bend, or straighten, as metal, by blows with the peen of a hammer or sledge.
© Webster 1913.