Firth

Common card · No. 350085

Firth is a word in the English and Scots languages used to denote various coastal waters in the United Kingdom, predominantly within Scotland. It is often used to refer to broad estuaries. In the Northern Isles, it more often refers to a smaller inlet. It is linguistically cognate to Scandinavian fjord and fjard (all from Proto-Germanic *ferþuz), with the original meaning of "sailable waterway". The word has a more constrained sense in English. Bodies of water named "firths" tend to be more common on the Scottish east coast, or in the southwest of the country, although the Firth of Clyde is an exception to this. The western Highland coast contains numerous estuaries, straits, and inlets of a similar kind, but not called "firth" (e.g. the Minch and Loch Torridon); instead, these are often called sea lochs. Before about 1850, the spelling "Frith" was more common. A firth is generally the result of ice age glaciation and is very often associated with a large river, where erosion caused by...

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