mycenaean

The term 'Mycenaean' is a modern scholarly construct, formed in the 19th century by adding the English adjectival suffix '-an' to the ancient Greek place name Μυκῆναι (Mykênai). This city, famed in Homeric epic as the seat of King Agamemnon, gave its name to the entire Late Bronze Age civilization of mainland Greece. The literal meaning of the original Greek toponym Mykênai is uncertain, though it is pre-Greek and likely of non-Indo-European origin, possibly relating to a mushroom shape (from mykēs, 'mushroom') or another local feature. Thus, 'Mycenaean' directly ties the abstract archaeological culture to its most iconic and powerful citadel.

This is a proper adjective/noun derived from the place name Mycenae. It is not productively segmented into smaller, meaningful English morphemes. The name Mycenae itself is of ancient Greek origin.