overstrike I. \| ̷ ̷ ̷ ̷| ̷ ̷\transitive verb Etymology:over (I) + strike 1.: to impress (a finished coin) with the design of another coin 2.: to impress (a specified coin design) onto a specified coin of another design < overstrike an 1827 quarter on an 1806 quarter > II. \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\noun : an overstruck coin