[Spellyans] difasya

[Michael Everson]

The spelling "difasya", wherever it comes from, would be pronounced [dɪˈfæzjə] or [dɪˈfæʒə] according to our rules. We would not spell the first segment "di" either, as that would violate the principled distribution of "i" and "y" that we use. 

For "de" versus "dy" I believe the latter is the typical form in Cornish, though an exhaustive listing of this type of word would be interesting if someone would like to compile one.

Michael Everson * http://www.evertype.com/