Elsy is of Hebrew origin, meaning 'God is my oath'. It's a variant spelling of Elsa and Else, both of which share the same root meaning. The name gained popularity in the late 19th century but has since become less common.
It appears that the name Elsy has seen a significant rise in popularity over time, with a substantial increase in births from the late 1980s onwards. The peak occurred recently, with 165 births recorded between 2019 and 2023 alone, compared to only eight births in total during the period of 1969 to 1972. This data suggests that Elsy is now a popular choice for newborns, having gained considerable traction over the past few decades.