The word derogating is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (34 words)
adoring, aneroid, darting, deraign, detrain, dragnet, eroding, gearing, geogrid, gigaton, goading, godetia, grading, grained, granite, granted, grating, groaned, groined, ignored, ingrate, ironage, negroid, orating, otarine, reading, redoing, taggier, tangier, tangoed, tearing, tradein, trading, trained