"quick, strong"

Swithun Origin and Meaning

The name Swithun is a boy's name of English origin meaning "quick, strong".

Variously spelled Swithun or Swithin, and associated with St. Swithin's day, July 15th, which is famous as a weather predictor a la Groundhog's Day: supposedly, the weather on his feast day will continue for forty days. This would certainly make a unique choice.