(in the Church of England) a penitential office read on Ash Wednesday in which God's anger and judgments are proclaimed against sinners.
Origin: 1400–50; late ME (< AF) < L comminātiōn- (s. of comminātīo), equiv. to commināt(us), ptp. of comminārī to threaten (com-com-+ minārī to threaten) + -iōn--ion