Dempsy is of Scottish origin, derived from the Gaelic word 'Damsa', which means 'zealous' or 'eager'. It is a rare and unique given name that was once popular among the nobility in Scotland but has since become more uncommon. The name Dempsy does not have any associated variants or nicknames, maintaining its distinctive sound.
"Dempsy was a relatively popular name for newborns between 1916 and 1945, with peaks occurring in the mid-1920s and early 1930s."