The Collaborative International Dictionary
Untackle
Untackle \Un*tac"kle\, v. t. [1st pref. un- + tackle.]
To unbitch; to unharness. [Colloq.]
--Tusser.
Wiktionary
untackle
vb. (context colloquial English) To unhitch; to unharness.
Usage examples of "untackle".
Leef crept off into the trees in search of prey for our supper, while I untackled the horses and brushed the dust and dried sweat from their coats.
They untackled their oxen and let them out, with the spirit of men whose future work was to be in a larger field.
The resolution was called, written out, and signed by every survivor, but afterward, when officers and men set themselves to the well-nigh impossible task of untackling the ship without implements of iron, revolt appeared among the workers.