What is "scamilli"

Scamillus \Sca*mil"lus\, n.; pl. Scamilli. [L., originally, a little bench, dim. of scamnum bench, stool.] (Arch.) A sort of second plinth or block, below the bases of Ionic and Corinthian columns, generally without moldings, and of smaller size horizontally than the pedestal.

n. (plural of scamillus English)