- -able [əbəl] suffix also -ible [in adjectives][: Old French; Origin: Latin -abilis, from -bilis 'capable or worthy of']1.) that you can do something to▪ washable (=it can be washed)▪ unbreakable (=it cannot be broken)▪ loveable (=easy to love)2.) having a particular quality or condition▪ knowledgeable (=knowing a lot)▪ comfortable>-ably [əbli] -iblysuffix [in adverbs]▪ unbelievably
Dictionary of contemporary English. 2013.