A·khe·na·ten or A·khe·na·ton 
(ä′kə-nätn, äk-nätn) also Ikh·na·ton (ĭk-nätn) Originally A·men·ho·tep IV (ä′mən-hōtĕp, ăm′ən-) Died c. 1355 BC.
(ä′kə-nätn, äk-nätn) also Ikh·na·ton (ĭk-nätn) Originally A·men·ho·tep IV (ä′mən-hōtĕp, ăm′ən-) Died c. 1355 BC. King of Egypt (1372-1355) who rejected the old gods and initiated a monotheistic worship of the sun-god Aten.