The word superfetate 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: 18
Highest Scoring Words With Friends™ Plays In The Letters superfetate
:
Seven Letter Word Alert: (31 words)
astuter, austere, epurate, estuate, euaster, feature, fetters, pasture, patters, perfuse, pretest, putters, refutes, repaste, repeats, restate, retapes, retaste, septate, spatter, sputter, startup, stature, steeper, tapster, teeters, trustee, tufters, uprates, upstart, upstate