Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'agnail'
< OE angnægl
, a corn (on the toe or foot) < ange
, pain (akin to anger
) + nægl
, nail (metal): orig. in reference to the nail-head appearance of the excrescence