treenail Hear it!

treenail definition

tree·nail (trēnāl′; also trenəl, trun-)

noun

a very dry wooden peg used to join timbers, esp. in building wooden ships: it swells from moisture and ensures a tight joint

Etymology: ME trenayle < tre, tree (in early sense “wood”) + nayle, nail

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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