to detest (something) utterly
to declare (somebody or something) to be evil or detestable
execration /-ʹkraysh(ə)n/ noun
execrative /-krətiv/ adj
execrator noun
execratory /-t(ə)ri/ adj
[Latin exsecratus, past part. of exsecrari to put under a curse, from ex-1 + sacr-, sacer sacred]