Word

Japanese scull (oar attached to the rear of the boat by a traditional peg-in-hole oarlock)
Word

櫓杭

艪杭
ろぐい
fulcrum peg (fitted into the cavity in an oar as part of a traditional oarlock)
Word

櫓櫂

艪櫂
ろかい
sculls and paddles
Word

櫓臍

艪臍
ろべそ
fulcrum peg (fitted into the cavity in an oar as part of a traditional oarlock)