dial. Also Sc. -gae. [UP- 2.] An ascent; spec. a rise in a stratum of rock.
1683. G. Sinclair, Misc. Obs. Hydrost., 278. Some [strata] again making their rise much more than their course, which they call Up-gaes.
1855. Whitby Gloss., 185. Upgo, a track up a hill.
