Morrill is an uncommon given name of American origin, derived from the surname Morrill, which has English and Scottish roots. It means 'from the edge of the moor,' where 'moor' refers to a tract of open, often treeless land covered with heather and other vegetation. This name was likely adopted as a first name due to its appealing sound and association with nature. It is also sometimes used as a surname in the United States.
"The name Morrill experienced its peak popularity in the early 20th century, with eight babies named Morrill born each year in 1915 and 1916. However, it seems this trend did not continue, as the number of annual births gradually decreased over time, reaching a low of five in both 1941 and 1949."