It may surprise you to learn that a word that refers to wishing evil upon someone has its roots in praying, but "imprecate" ultimately derives from the Latin verb precari, meaning "to pray, ask, or entreat." "Precari" is also the ancestor of such English words as "deprecate" (which once meant "to pray against an evil," though that sense is now archaic), "precatory" ("expressing a wish") and even "pray" itself (which has deeper roots in the Latin noun for a request or entreaty, "prex").
Examples of imprecate in a Sentence
with her dying breath the witch imprecated the villagers for their relentless persecution of her