WELK

DEFINITIONS CONTINUED
VERBS
2. to become less, to diminish, to shrink (obsolete)
3. of the moon: to wane, to lose brightness (obsolete)
4. of the sun in the west: to fade, to grow dim (obsolete)
5. to cause to fade or wither (obsolete except Scottish and dialect)
6. to move (dialect obsolete)
7. to soak, roll and macerate in a fluid (dialect)
8. to roll or knead together (obsolete rare)

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ETYMOLOGY
Middle English welken, probably of Continental origin: cf. (M)Dutch, Low German, Old High German welken (also Old High German welhen, Middle High German welchen), in the same sense, and Low German welk, wälk, Old High German welk, welc (German.welk) adj., withered, flaccid, sere, etc

verb, definition 8: 
related to walk (vb.) 

EXAMPLE
From: A Complete Edition of the Poets of Great Britain
Volume the Second, Containing Spenser, Shakespeare, Davies & Hall
The Poetical Works of Edmund Spenser, 1792
The Faery Queene, Book I, Canto I. P. 20