'acid-related' originates from the combination of 'acid' and the suffix '-related', where 'acid' refers to a chemical substance with a pH less than 7, and '-related' indicates a connection or association.

'acid' comes from the Latin word 'acidus', meaning 'sour', and 'related' is derived from the Latin 'relatus', meaning 'brought back'.

Initially, 'acid' referred to sour substances, but over time it evolved to include a broader range of chemical compounds.