err on the side of (something)

err on the side of (something)

To prioritize something, perhaps excessively or unnecessarily. Often used in the phrase "err on the side of caution." I like to err on the side of caution and always keep some money in my savings account.
See also: err, of, on, side

err on the side of

act with a specified bias towards something.
1999 Nature Der Sündefall's message may err on the side of alarmism, but it certainly is a good read.
See also: err, of, on, side