Averill is of Old English origin, derived from the elements 'æfre' meaning 'elf' and 'hyrst' meaning 'wooded hill'. It was initially used as a surname but has since evolved into a given name for both males and females in some cases.
The name Averill experienced several periods of popularity over the course of the century, with five or more births recorded in the years 1912, 1917, 1920, 1922, 1924-1927, 1931, 1933, 1936-1940, 1948, 1953, 1966, 1989, and 2005. The peak in popularity occurred in 1926 with eight births recorded that year. Overall, there were a total of 110 births named Averill over the course of these years.