▪ I.† deˈcreementObs. [-ment.] A decreeing, a decree. 1563–87Foxe A. & M. (1596) 5/1 These..expresse decreements of general councels.1601Bp. W. Barlow Defense 197 The sole..iudge of all writings and decreementes. ▪ II.decreement obs. (erron.) f. decrement.