dyker

Noun

diker (plural dikers)

1. One who digs or works on dykes; a ditcher.
   • Their armour and weapons were found at times, by delvers and dykers, for centuries after; are found at times unto this day, beneath the rich drained cornfields which now fill up that black half-mile[.]1866, Charles Kingsley, chapter 28, in Hereward the Wake, London: Nelson, page 386
2. (Northern England, Scotland) One who builds stone walls, usually dry-stone without lime.