α. 1800s– thingamajig, 1800s– thingamegig, 1800s– thingamejig, 1800s– thingamyjig, 1800s– thingemajig, 1800s– thingemygig, 1800s– thingemyjig, 1800s– thingermajig, 1800s– thingmajig, 1800s– thingmejig, 1800s– thingumajig, 1800s– thingummygig, 1800s– thingummyjig, 1800s– thingumyjig, 1900s– thingammygig, 1900s– thingammyjig, 1900s– thingamujig, 1900s– thingmegig, 1900s– thingumejig, 1900s– thingymygig, 1900s– thingymyjig.
β. Manx English 1800s– thingummagee, 1900s– thingumagee.
γ. 1800s– thingamtijig (English regional (Yorkshire)).
