I. ˈstā-ˌbī(-ə)l, -ˌbil adjective
Etymology: Latin stabilis — more at stable
Date: 1896
: stationary , stable
II. -ˌbēl noun
Etymology: probably from French, from Latin stabilis, adjective
Date: 1937
: an abstract sculpture or construction similar in appearance to a mobile but made to be stationary