Douglas Harper's Etymology Dictionary
1690s, contraction of does not.
Wiktionary
contraction does not.
Usage examples of "doesn't".
They may have tried threats or bribery at that point, but he was just too stubborn or stupid to be scared or boughtit doesn't make any difference now.
With all this on his mind, it's no wonder Gary doesn't notice the Ryder truck with the steam pouring out of the grille, or the two kids who have momentarily ceased their complicated negotiations concerning the magazine, the 3 Musketeers bar, and the red wagon, or the van coming down the hill.
Chisholm doesn't know anything about herbs," she told him, whispering.
She said she doesn't want to know-but that if you did, I was to make the test.
What happens to me doesn't matter, believe me-for God's sake, sboot bim now!
But-" 1 continued, raising a finger, "we must also each have a recessive gene, that doesn't allow tongue-rolling.
He doesn't dare, because of what our invention might do to the natural rubber business after the war.
The man just walks out of the house without a word or a message to anyone, and doesn't come back.
Simon thought, "if he doesn't know more about at least some of this charade than I do, I will devote the rest of my life to curling the hair on eels.
Because he doesn't mind using a German agent like Morgen if Morgen can be useful, instead of turning him over to the FBI.
If he doesn't, but an unfortunate accident eliminates me, that's providential .
He just doesn't ask what methods Devan uses, and therefore he doesn't know.
I don't know what proof or security he'd wantI can think of half a dozen devicesbut it doesn't matter.
He is very partial to martinis, and tends to be in the bag by four o'clock or so on most days when he doesn't have to teach.
She doesn't have Brad Josephson's hands, or reflexes, but she's pretty and a hell of a good sport.