Main Entry: mis·no·mer

Pronunciation: \ˌmis-ˈnō-mər\

Function: noun

Etymology: Middle English misnoumer, from Anglo-French mesnomer, from mes- mis- + nomer to name, from Latin nominare — more at nominate

Date: 15th century

1 : the misnaming of a person in a legal instrument
2 a : a use of a wrong or inappropriate name b : a wrong name or inappropriate designation

— mis·no·mered \-mərd\ adjective