Definition of know (someone) of old
- She's a friend who knows me of old.
: to perceive directly : have direct cognition of
: to have understanding of
: to recognize the nature of : discern
: some person : somebody
: dating from the remote past : ancient
: persisting from an earlier time
: of long standing
: one of a specified age
: old or earlier time
What made you want to look up know (someone) of old? Please tell us where you read or heard it (including the quote, if possible).