Coypu this invasive species's endurance controversial to human occupants throughout most of its range. The genus name "Myocastor" derives from the two Ancient Greek words (), meaning "rat, mouse", and (), meaning "beaver". Literally, therefore, the name "Myocastor" means "beaver rat". Two names are commonly used in English for "Myocastor coypus". The name "nutria" (from Spanish "nutria") is generally used in North America, Asia, and throughout countries of the former Soviet Union; however, in most Spanish-speaking countries, the word "nutria" refers primarily to the otter. To avoid this ambiguity, the name "coypu" or "coipo" (derived from the Mapudungun language) is used
Aengus (given name) Aengus (given name) Aengus is a masculine given name in Irish. It is composed of the Celtic elements meaning "one", and "choice". It is the Irish form of the Scottish Gaelic "Aonghas", "Aonghus". These three Gaelic names are Anglicised as "Angus' or as "Aeneas." The earliest form of the given name "Angus", and its cognates, occurs in Adomnán's "Vita Columbae" (English: ""Life of Columba"") as "Oinogusius", "Oinogussius". This name likely refers to a Pictish king whose name is recorded variously as "Onnust", "Hungus". According to historian Alex Woolf, the early Gaelic form of the name, "Oengus", was borrowed from the