Aphabetic letter pairs in words

DR = headroom.

DS: ads

DT — hardtack

DU - endure

DV = Adventure

DW: dwarfishnesses

DX = RapidXml

DY - dye

DZ = Kudzu

EA = Easter

EB: Ebbed

EC = recess

ED = Edged (twice)

EE = eel

EF = effortlessly

EG: Egg

EH = behind

EI: Weightless

EJ = reject

EK = trek