Warder is of English origin, derived from the word 'ward' which means to guard or protect. It was traditionally an occupational surname given to someone who had responsibility for guarding a building, such as a castle or gatehouse, or caring for wards, i.e., persons under legal protection.
In the year 1912 alone, six individuals were named Warder at birth. Overall, there have been a total of six babies given this name.