Brown Driver Briggs

 Tarshish or Tharshish = "yellow jasper"
n pr m
1. son of Javan
2. a Benjamite, son of Bilhan
3. one of the wise men close to king Ahasuerus of Persia
n pr loc
4. a city of the Phoenicians in a distant part of the Mediterranean
Sea to which the prophet Jonah was trying to flee
  1) site unknown but perhaps in Cyprus or Spain
5. a city somewhere near and accessible to the Red Sea to which ships
constructed at Ezion-geber on the Elanitic Gulf on the Red Sea were
to sail