Writes Indelibly is a term used to describe the process of writing something in a way that it cannot be erased or removed. The term can be broken down into three crossword solutions: PENS (4 letters), INKS (4 letters), and Inksin (6 letters). PENS are writing instruments that use a liquid or gel ink to create marks on paper. INKS are pigments or dyes that are used to create the marks on paper. Inksin is a type of ink that is designed to be permanent and indelible, meaning it cannot be removed or erased.