Here are all the OSW-only eight-letter words which end in -ED and which become legal in OWL if you change the last D to an S.
adonised apanaged asperged balladed beautied brooched calycled canaried captived carcased cherried chiaused climated convexed cottaged defenced enclaved epistled evoluted fanfared fibrosed formated ghillied goloshed grannied herbaged lozenged morrised multured parabled planched potashed prairied quinsied quitched raunched rosetted schapped scienced scrooged siamesed skittled smithied speeched statured stenched suretied thimbled toplined trapezed treacled turbined umbraged vampired vantaged vintaged warfared worthied