swaying

verb

1. (form-of, gerund, participle, present)present participle and gerund of sway

noun

1. (countable, uncountable)The motion of something that sways.
2. (countable, uncountable)An injury caused to a horse's back by violent strains or overloading.

   “A Swaying of the Back, is a Pain and Weakness in the Reins, caused by a Fall”