see doughnut. It turns up as an alternate spelling in U.S. as early as 1870 ("Josh Billings"), common from c. 1920 in names of bakeries. Halliwell ("Dictionary of Archaic and Provincial Words," 1847) has donnut "a pancake made of dough instead of batter," which Bartlett (1848) writes "is no doubt the same word" as the American one.
1. So I wrote a funny poem about a donut.
2. I'm willing to bet it's not your first donut of the day.
3. So, a purpose is like a box of powdered donut holes?
4. I need a jumbo sized donut and an iced tea.
5. Do you know the donut man, the donut man, the donut man?