muleback
Noun
Meaning
muleback (uncountable)
The back of a mule.
Examples
The floor of the valley is accessible by foot, muleback, or by boat or raft from upriver.
The return of Hephaestus on muleback to Olympus accompanied by Dionysus was a theme of the Attic vase-painters, whose wares were favored by Etruscans.