Wiktionary
vb. (context transitive English) To drive from harbour or shelter.
Usage examples of "unharbour".
If they unharbour a deer there, with what there is of wind it will come our way.
He would have an escort, since he was outside the Woodstock pales, but it was certain that, if a strong quarry were unharboured, he would soon leave that escort behind him.
While we waited for the finding and unharbouring of the hart, while I held myself in readiness for the chase and listened for the baying of the scent, while we followed the ruses and doublings of the quarry as he ran back on his own tracks to strengthen the scent then bounded sideways to confuse the hounds or entered and left the streamlets that run through the woods so as to break his traces, while I galloped with the others and followed the sound of the horn and shouted with all the power of my lungs and ducked the low branches, amidst all this hullabaloo and headlong career, I still drifted on the dark lake, still heard the words of love and promise she had given me, still felt the ring where it lay threaded against my breastbone.