denoting or pertaining to the ancient civilization at Mycenae, dating from c2000 to c1100 b.c.
noun
3.
Also called Mycenaean Greek.the earliest recorded Greek dialect, written in the Linear B syllabary and dating from the 15th through the 13th centuries b.c.
1598, "pertaining to Mycenae," the ancient city on the Argive plain, from L. Mycenaeus, from Gk. Mykenaios "of Mycenae," from Mykenai. In ref. to the Aegean civilization that flourished 1500-1100 B.C.E. and was centered on Mycenae, it is from 1890s.