treadleWiktionary 原文/ˈtrɛdl̩/构词拆解treadtread词干le-le后缀-leA frequentative suffix of verbs, indicating repetition or continuousness:词源链古英语Old English约 450–1150 年tredel↓ 继承中古英语Middle English约 1150–1500 年tredel↓ 继承英语Englishtreadle词源说明From Middle English tredel, from Old English tredel; equivalent to tread + -le.释义名词noun1A foot-operated pedal or lever that generates motion.2A device actuated by wheels passing over it.3(biology) Chalaza.动词verb1intransitiveTo use a treadle.