a mattock with one arm like that of an adz and the other like that of an ax.
Archaic. a double-bladed battle-ax.
Origin of twibill
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a mattock with a blade shaped like an adze at one end and like an axe at the other
archaic a double-bladed battle-axe
Word Origin for twibill
Old English, from twi- two, double + bill sword, bill ³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012