Aphabetic letter pairs in words

D*H - duh

D*H - woodchuck (just to try to keep the words legitimate, when possible)

D*I - admit

DJ - dojo

D*K = duke

D*L - dell

D*M = diadem

D*N = golden

D*O - Doolittle

D*O = droll (avoiding proper nouns)

D*P = adipose

D?Q = adequate

D*R = redder

D*S - redistribute

D*T = plaudit

D*U - adjudicate

D?V - divest

D*W = sundew

D*X = index

D*Y = yesterday

D*Z - dizziness

E*A = recalibrated