Nostos Save Could not find Nostis in Logeion dictionaries. Nostis Proper-name noun: masculine ablative plural, Proper-name noun: masculine dative plural of Nostos Nostis Verb: perfect active indicative 2nd plural of nosco See Nostis in Morpho Lewis & Short Nostos, i, m., = Νόστος (return), name of a Roman slave, Inscr. Fabr. p. 194, n. 41.