α. English regional (chiefly northern) 1600s jackalegg, 1700s gackaleys, 1700s–1800s jack-o-legs, 1800s jackalegs, 1800s jackilegs, 1800s jacky-legs, 1800s jackylegs, 1800s jockalegs, 1800s jockelegs, 1800s jockylegs, 1800s–1900s jack-a-leg.
β. 1600s iockleg (Scottish), 1600s jock leg (Scottish), 1700s iack lag, 1700s jack leg, 1800s jack-lag, 1800s jackleg.
γ. Scottish 1600s jack the leg, 1600s jockdeleg, 1600s–1700s jackteleg, 1600s–1700s jock the leg, 1700s–1800s jocteleg, 1700s–1800s joktaleg, 1700s– jocktaleg, 1800s jock-tae-leg, 1800s jock-to-leg, 1800s jockteleg, 1800s joctaleg, 1900s jocktileg, 1900s joktileg.
δ. 1900s jack o' the leg (Irish English (northern)).