Þormundr is probabably an Eastern Scandinavian make personal name formed from Old Norse Þór- ‘the god’s name Þór’ and Old Norse –mundr ‘protector’. It is rare in Sweden, but a number of instances are recorded in Denmark including the form þurmutʀ in a runic inscription from the early Viking Age. The name was not found in West Scandinavia until the sixteenth century.
Some forms of the place-name Thurmaston, Leicestershire seemed to be influenced by Þormundr in the thirteenth and fourteenth centuries.
