'platform-agnostic' originates from the combination of 'platform' and 'agnostic', where 'platform' refers to a computing environment and 'agnostic' means 'not committed to a particular belief or course of action'.

The term 'agnostic' was originally used in a religious context to describe someone who is unsure about the existence of deities. It was later adopted in technology to describe software or systems that are not tied to a specific platform.

Initially, 'agnostic' meant 'not knowing' in a religious context, but in technology, it evolved to mean 'not limited to a specific platform'.