the word 'stylus' is a direct borrowing from latin 'stilus', which referred to a pointed instrument used for writing on wax tablets. the latin term itself is of uncertain origin, though it is not derived from greek. the core semantic element 'stil-' or 'styl-' has consistently denoted a pointed column or pillar, which logically extended to a writing tool. in modern usage, this ancient concept of a pointed instrument has been seamlessly adapted to describe the digital pen used for interacting with touchscreen devices, maintaining the fundamental idea of a tool that makes precise contact with a surface.

Structure: styl (pointed instrument) + us (masculine noun suffix) styl (from latin 'stilus', meaning a pointed instrument for writing); us (a latin masculine noun ending, often retained in english loanwords).