Archaeolithic \Ar`ch[ae]*o*lith"ic\
([aum]r`k[-e]*[-o]*l[i^]th"[i^]k), a. [Gr. 'archai^os ancient
+ liqiko`s pertaining to a stone.] (Arch[ae]ol.)
Of or pertaining to the earliest Stone age; -- applied to a
prehistoric period preceding the Paleolithic age.
[1913 Webster]