Pernach
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This article is about pernach mace. For the Pernach pistol, see OTs-33 Pernach.
A pernach (Russian: перна́ч, Ukrainian: перна́ч or пірна́ч, pirnach, Polish: piernacz) is a type of flanged mace originating in the 12th century in the region of Kievan Rus' and later widely used throughout Europe. The name comes from the Slavic word перо (pero) meaning feather, referring to a type of mace resembling an arrow with feathering.