Goes all the way back to Latin, too! Left = sinister, right = dexterous https://en.wikipedia.org/wiki/Dexter_and_sinister https://en.wikipedia.org/wiki/Dexter

Goes all the way back to Latin, too! Left = sinister, right = dexterous https://en.wikipedia.org/wiki/Dexter_and_sinister https://en.wikipedia.org/wiki/Dexter_and_sinister