The Collaborative International Dictionary
Suppedaneous
Suppedaneous \Sup`pe*da"ne*ous\, a. [Pref. sub- + L. pes, pedis,
a foot: cf. L. suppedaneum a footstool.]
Being under the feet. [Obs.]
--Sir T. Browne.
Wiktionary
suppedaneous
a. (context obsolete English) Beneath the foot.