Origin: 1605–15; < L
imprecātus ptp. of
imprecārī to invoke, pray to or for, equiv. to
im- im- 1 +
prec- pray +
-ātus -ate 1 
Related forms: im⋅pre⋅ca⋅tor, noun
im⋅pre⋅ca⋅to⋅ry, adjective
Synonyms:
curse, execrate, anathematize, accurse, denunciate.
Antonyms:
bless.