Most past tense verbs.
data
world
Did is one.
Red
decideddeduceddeededdivideddredged
WalkedWoodWouldWordWorldWindWeanedWeedWeededWandWoundweldwildweirdwardwithstandwithstoodwedwaswallboardwarheadwarlordwashboardwastedwatchwordwaterloggedwatershedwavebandweddedwebbedweekendweightedwesternizedwellheadwestboundwetlandwoodlandwheeledwhipcordwhippedwhirlwindwhiteheadwhiteboardwickedwomanhoodwidowhoodwidespreadwieldwindedwiredwitheredwithheldwizardwoodwindwomankindwonderlandwoodshedwordedworkloadworstedwraparoundwretchedwrinkledwristbandwaistbandwunderkind
darkdatabankdaybreakdeadlockdeckdeskdiskdockdrankdrawbackdrinkdrumbstruckdrunk
Doric
diarria
dick
trendtriadtriedtiredtreadtrendtepidthirdtweed
Here are some D _ _ Y words:DulyDenyDoryDrayDopyDoxyDavy