know (someone) of old

idiom

Definition of know (someone) of old

formal, British
: to have known (someone) for a long time She's a friend who knows me of old.

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“Know (someone) of old.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/know%20(someone)%20of%20old. Accessed 6 December 2019.

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