ACH`ERON, a river in the underworld; the name of several rivers in
Greece more or less suggestive of it.


ACH`ERY, a learned French Benedictine of St. Maur (1609-1685).


ACH`ILL, a rocky, boggy island, sparsely inhabited, off W. coast of
Ireland, co. Mayo, with a bold headland 2222 ft. high.


ACHILLE`ID, an unfinished poem of Statius.


ACHIL`LES, the son of Peleus and Thetis, king of the Myrmidons, the
most famous of the Greek heroes in the Trojan war, and whose wrath with
the consequences of it forms the subject of the Iliad of Homer. He was
invulnerable except in the heel, at the point where his mother held him
as she dipt his body in the Styx to render him invulnerable.


ACHILLES OF GERMANY, Albert, third elector of Brandenburg, "fiery,
tough old gentleman, of formidable talent for fighting in his day; a very
blazing, far-seen character," says Carlyle (1414-1486).


ACHILLES TENDON, the great tendon of the heel, where Achilles was
vulnerable.