櫓杭
ろ
ぐ
い
Meanings
1
fulcrum peg; oarlock pin
A wooden peg fitted into a cavity in an oar, used as part of a traditional Japanese oarlock (入れ子). This is a specialized nautical term.
See also: 入れ子
On a traditional Japanese boat, you insert the fulcrum peg into the oarlock and row.