Thanks, Satin, for the name of the treadle sewing machine.
Off hand, I don't think tread has been mentioned here at all, so that's a good addition.

wwh, I'm sorry you don't like footing for a sum of a long column of figures, but I like do like it although hardly anyone in this world would understand me if I used it, so it's destined to be a WAD word and probably nothing else save in my dreams. Bon soir...