What is a system of toponyms; the use of toponyms. -- To*pon"y*mal (#), Top`o*nym"ic (#), Top`o*nym"ic*al (#), a called?

toponymy — A system of toponyms; the use of toponyms. -- To*pon"y*mal (#), Top`o*nym"ic (#), Top`o*nym"ic*al (#), a. (Webster's 1913.)

Sources