sesquĭ-pēs — Lewis & Short
sesquĭ-pēs, pĕdis, m.,
I a foot and a half (in length, breadth, etc.):
cytisum in sesquipedem ponere,Varr. R. R. 1, 43:
plus quam sesquipedem prohibeat infodere,Col. 3, 13, 8; id. Arb. 1, 5:
sesquipede est quam tu longior,Plaut. Trin. 4, 2, 58; Mart. 8, 60, 2; Pers. 1, 57.