The Collaborative International Dictionary
Crevis \Crev"is\ (-?s), n. (Zo["o]l.) The crawfish. [Prov. Eng.]
n. (context UK dialect English) The crayfish.
Usage examples of "crevis".
So think I (quoth another) for the outragious poyson of madness hath killed him, but being thus in divers opinions of a poore Ass, they looked through a crevis, and espied me standing still, sober and quiet in the middle of the chamber.