Origin of treadleMiddle English tredel from Old English tredan: see tread
intransitive verb-·dled, -·dling
intransitive verbtread·led, tread·ling, tread·les
Origin of treadleMiddle English tredel from Old English step of a stair from tredan to tread
(third-person singular simple present treadles, present participle treadling, simple past and past participle treadled)
- To use a treadle.