Origin: 1275–1325;Middle Englishshrewed, in part representing shrew1 + -ed3 (cf. dogged, wicked); in part probably past participle of shrewen to curse, v. use of shrew1 (see -ed2)
c.1300, "wicked, evil," from shrewe "wicked man" (see shrew). Cf. crabbed from crab, dogged from dog, wicked from witch. The sense of "cunning" is first recorded 1520.