to fettle, to set or go about any thing ; to dress or prepare : to fettle th' tits, to dress the horses. N.
·noun The act of <<Fettling>>. II. Fettle ·vi To make preparations; to put things in order; to do t...
Webster's Dictionary of the English Language
To fit, repair, or put in order. Also, a threat. ...
The Sailor's Word-Book