adv. and a. [UP prep.2]
1. adv. Upwards. north. dial.
1760. in Eng. Dial. Dict.
1808. [see BANK sb.1 2 b].
2. adj. (See quot.)
1883. R. H. Scott, Elem. Meteor., 213. The well-known phenomenon of up-bank thaw, when it thaws on the hills, while the frost is unbroken in the valleys below.