Deil, the devil. “Deil's buckie,” devil's imp.

Deleerit, distracted.

Diet-loaf, a kind of spongecake.

Dinna, don't.

Doited, dotard.

Donnart, stupid.

Dookit, ducked.

Douce, quiet, sensible.

Dought, was able.

Doun, down.