Slock
- like a slack, a slock generally denotes a hollow between hills, or a pass, when it appears in place-names, though it can also indicate an inlet of the sea. Derived from Gaelic sloc 'pit, den' it is found in written sources from all over Scotland, including S. R. Crockett's account of the hollow-throated pass... (with) the grim name of the Wolf's Slock, in his southern Scottish novel, The Raiders (1893). A more northerly illustration is provided in the Statistical Account of Scotland for Aberdeenshire (1834-45), which describes the discovery of an old eyrie in the slocks of Glencarvy.