do by

English

Verb

do by (third-person singular simple present does by, present participle doing by, simple past did by, past participle done by)

  1. (informal, usually used with right/well or wrong/ill) To perform on behalf of someone or with someone in mind; to behave in a manner befitting someone.
    I've tried hard to do right by him. Even so, he continues to do badly by me.
    Do as you would be done by.

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