Origin of posthole
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for post-hole
One can rake over an acre more easily than dig one post-hole.Picture-Work
Walter L. (Walter Lowrie) Hervey
Make the holes for the posts with a post-hole auger, two feet deep; set in the posts, charred on one end, to make them durable.
The dirt blew from a post-hole in the hillside and left the hole sticking out of the ground about two feet with no dirt around it.
Word Origin and History for post-hole
Online Etymology Dictionary, © 2010 Douglas Harper