The substitution of Middle English -o- for Old English -u- before -m-, -n-, or -r- was a scribal habit before minims to avoid misreading the letters in the old style handwriting, which jammed letters. The practice similarly transformed some, monk, tongue, worm.
Bellbrook is a city in Greene County, Ohio, United States. The population was 6,943 at the 2010 census. It is part of the Dayton Metropolitan Statistical Area.
(cities in Montgomery County are Dayton, Oakwood, Centerville, Miamisburg, West Carrollton, Kettering, Riverside, Huber Heights, Vandalia, Trotwood, and Englewood.) Greene County Ohio Tax. Greene County. (Cities in Greene County include Beavercreek, Bellbrook, Fairborn, Yellow Springs, Xenia, Jamestown, Spring Valley, and Cedarville)