Oopsy, mistype there. I mean't Filliater, a french surname. Also, I thank you for clarifying that it doesn't make sense, which I had a feeling about. I was finding the French form of the English surname Filliater, and I thought "ter" might have ended in "tiere" as in Filliatiere, but after looking for more forms, I later found Filliatre, then Filliastre, then Fillastre. As you have said, it is from Old French fillastre, which is ultimately from Latin filius, meaning "a son". We both came to the same conclusion. As you can see, the Filliater and Fillisters of Ohio are related, and like you said, an American form of Fillastre. I believe this is also true with the Fillister of England, an English form of Fillastre.
This message was edited by the author on July 28, 2012 at 8:44 PM