in or at some
place not specified, determined, or known: They live somewhere in Michigan.
place not specified or known: They went out somewhere.
at or to some
point in amount, degree, etc. (usually followed by about, near,
etc.): He is somewhere about 60 years old.
point of time (usually followed by about, between, in,
etc.): somewhere about 1930; somewhere between 1930 and 1940; somewhere in the 1930s.
an unspecified or uncertain place.
Origin: 1150–1200; Middle English;