A small ships
Boat from the 18th or 19th centuries, clinker built and propelled by oars. When included as part of a warship the typical configuration was 6 oars on 3 thwarts.
From the german or dutch ījolleī and Swedish īJolī: a small
Boat or
Bark. It may also be a derivation of
Yawl or gellywatte.