The word etymologists 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: 20
Highest Scoring Words With Friends™ Play In The Letters etymologists
:
Seven Letter Word Alert: (43 words)
egoisms, egoists, egotism, egotist, elogist, glioses, glottis, gooiest, goosies, loosest, messily, mitoses, moistly, molests, motleys, mottles, mottoes, oolites, otolite, semilog, smileys, soloist, somites, sootily, stogeys, stogies, stomies, stooges, stoolie, stylets, stylise, stylist, stymies, systole, testily, toilets, toolset, tootles, tootsie, toyless, tyloses, tylosis, tylotes