Resty

In vaine the Pagan bannes, and sweares, and rayles, / And backe with both his hands unto him hayles / The resty raynes […]

Source: wiktionary

[N]either knovv I vvhether it is more hard to manage of the tvvo, a dejected eſtate, or a proſperous, vvhether vve may be more incommodated vvith a reſty horſe, or vvith a tyred one: […]

Source: wiktionary

I could not come a moment sooner; I hardly expected to get here at all, for my horse has been so confounded resty I could not tell how to get him along.

Source: wiktionary

“Catch hold of the pack-beasts!” I shouted, as they shied back upon us, and two were caught and held fast—I know not by whom. The third, the resty one, springing backwards past me, almost on his haunches, jerked his halter wide of my clutch, and in a moment was galloping full flight down the slope.

Source: wiktionary