c. 1300, Macedone, from Latin Macedonius "Macedonian," from Greek Makedones "the Macedonians," literally "highlanders" or "the tall ones," related to makednos "long, tall," makros "long, large" (from PIE root *mak- "long, thin"). Macédoine "mixed cut fruit or vegetables" is by 1846, from French, said to be a reference to the diversity of people in Alexander's empire.
c. 1300 (n.) "native or inhabitant of ancient Macedonia," from Latin Macedonius (see Macedonia) + -an. From 1580s as an adjective, "belonging or relating to ancient Macedonia." The people of Alexander the Great; they used a Greek language and were akin to the Greeks, and in Lower Macedonia, especially along the coasts where the two peoples were in contact, they were largely Hellenized, but in classical times among the Greeks (who were sensitive about identity) seem to have been generally considered foreigners, though not barbarians, due to the important differences, such as government by monarchy.
district south of Macedonia and east of Epirus, from Greek Thessalia (Attic Thettalia), an Illyrian name of unknown origin. Related: Thessalian. The city of Thessalonika on the Thermaic Gulf was ancient Therme, renamed when rebuilt by the Macedonian king Cassander, son of Antipater, and named in honor of his wife, Thessalonica, half-sister of Alexander the Great, whose name contains the region name and Greek nikē "victory." The adjectival form of it is Thessalonian Related: Thessalonians.