Eth. EPIDII in Britain, mentioned by Ptolemy as the people to the east of the Epidian promontory (Mull of Cantyr) == Argyleshire. [R.G.L]
Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.