'chemogenic' originates from Greek combining forms via Modern Latin/English: the prefix 'chemo-' (from Greek 'khēmeia' or 'chemeia', related to 'alchemy'/'chemistry') combined with the suffix '-genic' (from Greek 'genēs', meaning 'born of' or 'producing').

'chemogenic' is a modern English/scientific coinage formed from the Greek-derived combining elements that entered English through Medieval Latin and New Latin (e.g., 'chemeia' → 'chemistry'); the adjective developed in scientific contexts to mean 'produced by chemical processes.'

Initially the Greek root related to 'alchemy' and 'chemical arts'; over time the combined form came to mean specifically 'produced by chemical action' in modern scientific usage.