出典:Wiktionary
From Middle English bisteppen, from 古期英語 besteppan (“to tread upon, step, go, enter”), from Proto-Germanic *bistapjaną (“to enter”), equivalent to be- + step. Cognate with Dutch bestappen.
bestep (third-person singular simple present besteps, present participle bestepping, simple past and past participle bestepped or (古風な用法) bestept)