peen

peen (pēn)

noun

the part of the head of certain hammers opposite to the flat striking surface: it is often ball-shaped or wedge-shaped

Etymology: prob. < Scand, as in Norw pænn, sharpened end of a hammer, Swed pæna, to beat out

transitive verb

to hammer, bend, etc. with a peen

Followed by an intransitive particle

over: Cleaning would have been easier if the alloy cover had not been peened over at the back.

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