/sup'i day"nee euhm/ , n. , pl. suppedanea /-nee euh/ .
a shelf affixed to a cross for supporting the feet of the crucified.
[ 1860-65; suppedaneus under the feet, equiv. to sup- SUP- + ped- (s. of pes ) FOOT + -aneus ( -an ( us ) -AN + -eus -EOUS) ]