 In Old English , the term <unk> was " from medieval Latin <unk> , from Latin <unk> , " which equated to " <unk> " . <unk> in modern French means plum , so plum <unk> have names such as <unk> aux prunes . In English , prunes are dried plums , and when modern cakes use them as a primary ingredient , they may be referred to as a plum cake or type of plum cake . 
