flyboat

Etymology
Borrowed from, but re-analysed as.

Noun

 * 1) A large flat-bottomed Dutch coasting vessel.
 * 2) * August 14, 1595, Thomas Treffry, letter to Sir Robert Cecil
 * a ship of Bristol was chased into this harbour by two Spanish fly-boats, and they report that there are five men of war, Spanish, in the road of Conquet
 * 1) A kind of passenger boat formerly used on canals.