'acid-producing' originates from the combination of 'acid,' from Latin 'acidus,' meaning 'sour,' and 'producing,' from Latin 'producere,' meaning 'to bring forth.'

'acidus' transformed into the Old French word 'acide,' and eventually became the modern English word 'acid.' 'Producere' transformed into the Old French word 'produire,' and eventually became the modern English word 'produce.'

Initially, 'acid' meant 'sour,' and 'producing' meant 'bringing forth.' Over time, 'acid-producing' evolved to describe entities that generate acid.