R / rŏtābĭlis
adjective

rŏtābĭlis

neut. rŏtābĭle
Whirling; rotary
Whirling, rotary (late Lat.): flexus, Amm. 23, 4, 2.—
practicable by extension
Transf., of a road, practicable: VIAM INVIAM ROTAB. REDD., Inscr. Grut. 149, 1.