“Ko aroko lori omi” is a Yoruba phrase that translates to “No inscription on water” in English. This proverbial expression is used to convey the idea that actions or words that are not documented or recorded can easily be forgotten or disputed. It emphasizes the importance of having written records or evidence to support claims or establish facts. In essence, it suggests that relying solely on oral communication or memory can be unreliable, and it is better to have written documentation or tangible proof.