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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
err on the side of somethingshow slightly too much rather than too little of a quality, especially a good one: When I am marking exam papers, I always try to err on the side of generosity (= I give slightly higher marks than the students may deserve).
Err is an old-fashioned word meaning ‘make a mistake’.
Farlex Partner Idioms Dictionary © Farlex 2017