Made things left behind, and unintended marks left by a process. The same word for what was meant and what crept in.
Latin arte factum (made by skill), from ars (skill) + factum (made), from facere (to make); made things left behind, and also unintended marks left by a process.
Made things left behind, or unintended marks a process leaves, one word for what was meant and what crept in.