ewalk wealk eawlk aewlk waelk awelk ewlak welak elwak lewak wleak lweak ealwk aelwk elawk leawk alewk laewk walek awlek wlaek lwaek alwek lawek ewakl weakl eawkl aewkl waekl awekl ewkal wekal ekwal kewal wkeal kweal eakwl aekwl ekawl keawl akewl kaewl wakel awkel wkael kwael akwel kawel ewlka welka elwka lewka wleka lweka ewkla wekla ekwla kewla wkela kwela elkwa lekwa eklwa kelwa lkewa klewa wlkea lwkea wklea kwlea lkwea klwea ealkw aelkw elakw leakw alekw laekw eaklw aeklw ekalw kealw akelw kaelw elkaw lekaw eklaw kelaw lkeaw kleaw alkew lakew aklew kalew lkaew klaew walke awlke wlake lwake alwke lawke wakle awkle wkale kwale akwle kawle wlkae lwkae wklae kwlae lkwae klwae alkwe lakwe aklwe kalwe lkawe klawe
Note: these 'words' (valid or invalid) are all the permutations of the word ewalk. These words are obtained by scrambling the letters in ewalk.