nounincumbaINCVMBA☆ KeepMeaningthe impostLewis & Short 1879ModernAs printed, 1879INCUMBALEWIS & SHORTINCUMBAincumba, ae, f. incumbo, archit. t. t., I. the impost or chaptrel of a pillar that bears the weight of an arch, Vitr. 6, 11.Read the whole entry