Cry over spilled milk
English Idiom
Meaning: When you cry over spilled milk, you're upset about something that has already happened and cannot be changed. It's a way of expressing that it's pointless to worry or be sad about past mistakes or mishaps.
Origin: The idiom 'cry over spilled milk' dates back to the 17th century. It was first recorded in a book called 'Proverbs' by James Howell in 1659. The phrase was used to illustrate the futility of lamenting over something that cannot be undone, much like lamenting over milk that has already been spilled.
