DONJON
Don"jon, n. Etym: [See Dungeon.]
Defn: The chief tower, also called the keep; a massive tower in ancient castles, forming the strongest part of the fortifications. See Illust. of Castle.
DONKEY Don"key, n.; pl. Donkeys. Etym: [Prob. dun, in allusion to the color of the animal + a dim. termination.]
1. An ass; or (less frequently) a mule.
2. A stupid or obstinate fellow; an ass. Donkey engine, a small auxiliary engine not used for propelling, but for pumping water into the boilers, raising heavy weights, and like purposes. — Donkey pump, a steam pump for feeding boilers, extinguishing fire, etc.; — usually an auxiliary. — Donkey's eye (Bot.), the large round seed of the Mucuna pruriens, a tropical leguminous plant.
DONNA
Don"na, n. Etym: [It. donna, L. domina. See Don, Dame.]
Defn: A lady; madam; mistress; — the title given a lady in Italy.
DONNAT
Don"nat, n. Etym: [Corrupted from do-naught.]
Defn: See Do-naught. [Prov. Eng.] Halliwell.
DONNEE
Don`née", n. [F., fr. donner to give.]