empiric

Borrowed from Latin empiricus, from Ancient Greek ἐμπειρῐκός (empeirĭkós, “experienced”), from ἐμπειρία (empeiría, “experience, mere experience or practice without knowledge, especially in medicine, empiricism”), from ἔμπειρος (émpeiros, “experienced or practised in”), from ἐν (en, “in”) + πεῖρα (peîra, “a trial, experiment, attempt”). Not related to empire.