Fea, you've taken to reading Eodwine's mind and finding things I didn't even know were there.
Maybe when I'm gone YOU should take him up.... (I'm not joking).
Formy, I really like your rendering, "Eodwinelingas" - great idea, and very fitting to both Tolkien and Anglo-Saxon culture. I think however that since there is no L in Eodwine's name, the proper rendering would be "Eodwiningas".