Everglades

[ev-er-gleydz] /ˈɛv ərˌgleɪdz/

noun, (used with a plural verb)
1.
a swampy and partly forested region in S Florida, mostly S of Lake Okeechobee. Over 5000 sq. mi. (12,950 sq. km).
[ev-er-gleyd] /ˈɛv ərˌgleɪd/
noun
1.
a tract of low, swampy land, especially in southern Florida, characterized by clumps of tall grass and numerous branching waterways.
/ˈɛvəˌɡleɪdz/
plural noun
1.
the Everglades, a subtropical marshy region of Florida, south of Lake Okeechobee: contains the Everglades National Park established to preserve the flora and fauna of the swamps. Area: over 13 000 sq km (5000 sq miles)
n.

1823, from everglade, from ever, perhaps in sense of “endless” + glade.

The distance from the mouth of Hilsborough river to the head of the lake, in a direct line, is about 110 statute miles. The country between them is mostly, if not wholly, an everglade, by which is meant a low marsh frequently covered with water, and in which there grows a sharp triangular grass, from ten to twelve feet high, and impervious to men or animals. [“American Mechanics’ Magazine,” 1825]