jib
noun
°(nautical) A triangular staysail set forward of the foremast. In a sloop (see image) the basic jib reaches back roughly to the level of the mast.
°(nautical) Usually with a modifier, any of a variety of specialty triangular staysails set forward of the foremast.
verb
°Of a horse, to stop and refuse to go forward.
°To stop doing something, to become reluctant to proceed with an activity.