wen noun¹. [wɛn]
[Old English wen(n), wæn(n) = Dutch wen, prob. rel. to Middle Low German wene, Low German wehne tumour, wart, of unkn. origin.]
1. A lump or protuberance on the body; spec. (a) a wart; (b) Medicine a sebaceous cyst under the skin, esp. on the head; (c) a swelling on the throat characteristic of goitre; (d) an excrescence or tumour on the body of a horse; (e) an excrescence on a tree. OE.

2. A spot, a blemish, a stain, (lit. & fig.). ME-L16.

3. transf. & fig. An unsightly or disfiguring addition etc.; esp. a large and congested city. L16.
the great wen London.

■ wenny adjective (now rare or obsolete) (a) of the nature of or similar to a wen; (b) afflicted with wens: L16.

[TahlilGaran] English Dictionary ▲