1. Also called: moonsail (ˈmuːnsəl, -ˌseil) Nautical
a light square sail set above a skysail
2.
a simpleton
Word origin
[1780–90; moon + raker]This word is first recorded in the period 1780–90. Other words that entered Englishat around the same time include: carbon, dynamics, fluff, rosette, vampire bat