A strong current or furious tide betwixt island groups.
“This lofty promontory is constantly exposed to the current of a strong and furious tide, which, setting in betwixt the Orkney and Zetland islands, and running with force only inferior to that of the Pentland Frith, ... is called the Roost of Samburgh [from the headland].” —
Gone to roost. Gone to bed. (Anglo-Saxon, hrost.)
“The chough and crow to roost are gone.”
Glce (words by Joanna Baillie, music by Bishop).