The Collaborative International Dictionary of English v.0.48:

Welk \Welk\, v. i. [imp. & p. p. Welked; p. pr. & vb. n.
   Welking.] [OE. welken; cf. D. & G. welken to wither, G.
   welk withered, OHG. welc moist. See Welkin, and cf.
   Wilt.]
   To wither; to fade; also, to decay; to decline; to wane.
   [Obs.]
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         When ruddy Ph?bus 'gins to welk in west. --Spenser.
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         The church, that before by insensible degrees welked
         and impaired, now with large steps went down hill
         decaying.                                --Milton.
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The Collaborative International Dictionary of English v.0.48:

Welk \Welk\, v. t.
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   1. To cause to wither; to wilt. [Obs.]
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            Mot thy welked neck be to-broke [broken]. --Chaucer.
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   2. To contract; to shorten. [Obs.]
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            Now sad winter welked hath the day.   --Spenser.
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   3. To soak; also, to beat severely. [Prov. Eng.]
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The Collaborative International Dictionary of English v.0.48:

Welk \Welk\, n.
   A pustule. See 2d Whelk.
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The Collaborative International Dictionary of English v.0.48:

Welk \Welk\, n. (Zool.)
   A whelk. [R.]
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