atheonism--prophetes.ai

† ˈatheonism Obs. rare^—1.
[Formation irregular; perh. after It. atheo (cf. Draco, Draconism); see quot. 1568 in atheist 1.]
= atheism.

c 1534 Pol. Verg. Eng. Hist. (1846) I. 165 Godd would not longe suffer this impietie, or rather atheonisme.

Oxford English Dictionary