Origin: 1570–80; (< Middle French ) < Italian montimbanco one who climbs on a bench, equivalent to mont(are) to climb (see mount1) + -im-, variant of in on + banco bench (see bank2)
"a doctor that mounts a bench in the market, and boasts his infallible remedies and cures" [Johnson], 1577, from It. montambanco, contraction of monta in banco "quack, juggler," lit. "mount on bench" (to be seen by crowd), from monta, imperative of montare "to mount" + banco, var. of banca "bench."