heterography [ het-uh-rog-ruh-fee ]
1. spelling different from that in current use.
2. the use of the same letter or combination of letters to represent different sounds, as, in English, the use of s in sit and easy.
het·er·o·graph·ic [het-er-uh-graf-ik] , het·er·o·graph·i·cal, adjective
Origin: First recorded in 1775–85; hetero- + -graphy
EXAMPLES FROM THE WEB FOR HETEROGRAPHY
I corrected his heterography; and we confounded the tricks of the evil ones.
CRIPPS, THE CARRIER|R. D. (RICHARD DODDRIDGE) BLACKMORE
Now YOU come up with a sentence (or fic? or graphic?) that best illustrates the word.