Simple past tense and past participle of treadle.(verb)
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Use "treadled" in a sentence
"His son, Allan, was in the yard, sharpening a knife on a foot-treadled grindstone."
"Cavalry troopers queued to have their swords or sabres ground to a killing edge on the treadled stones, while the gunners filled the shot-cases of their field carriages with ready ammunition."
"He oiled the wheel, treadled it, and then put the blade onto the stone so that it rang, it shrieked, and the sparks flowed like live-fire from the steel."