'loggerhead' originates from Middle English, specifically the word 'loggerhede,' where 'logger' meant 'block of wood' and 'head' referred to the head.

'loggerhede' transformed into the modern English word 'loggerhead' through Middle English.

Initially, it referred to a 'blockhead' or 'stupid person,' but over time it evolved to mean a 'state of conflict' and a 'type of sea turtle.'