E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A tidal wave.
The most celebrated bores are those of the Brahmaputra, Ganges, Hooghly, Indus, and Tsintang (in China). Bores occur regularly in the Bristol Channel and Solway Frith; occasionally (in high tides), in the Clyde, Dee (Cheshire), Dornoch Frith, Lune, Severn, Trent
(eygre), and Wye. The bore of the Bay of Fundy is caused by the collision of the tides. (Icelandic bára, a wave or billow.)