archpirate

plural archpirates · alternative arch-pirate

1. A leader of pirates.

   […] he says a man might deem there were as many archpirates as there were oars.

   1869, William Barnes, Early England and the Saxon-English

   1 more example

   Not improbably those foreign aggressors, as they are naturally styled by the then owners — those archpirates, the host of Lochlinn — were invited to assist in resisting the Roman oppressors by natives who, sooner than submit, had retreated […]

   1873, Transactions of the Historic Society of Lancashire and Cheshire