Jeffer is of American origin, derived from the Germanic ' Godfrey,' which means 'peace.' It was popularized by early settlers in North America and has since become a staple in many English-speaking countries.
The name Jeffer appears to have been quite popular in the mid-20th century and again in the early 21st century, with five occurrences each in 1957, 1968, 1972, 1992, and 2002. However, there is a gap of around two decades between these peaks. The name first appeared in 1930 but did not become popular again until the late 1950s. Overall, there were a total of thirty births with the name Jeffer over this period.