'antienzymic' originates from Modern English, specifically the prefix 'anti-' from Greek 'anti-' meaning 'against', combined with 'enzymic' derived from New Latin/French 'enzyme' (from Greek 'ζύμη' 'zymē') plus the adjectival suffix '-ic'.

'antienzymic' was formed by combining the productive prefix 'anti-' with 'enzymic'; 'enzyme' entered English via French/New Latin from Greek 'ζύμη' ('zymē') meaning 'leaven' or 'ferment', and the suffix '-ic' created the adjective 'enzymic' which then combined with 'anti-'.

Initially the roots meant 'against' and (historically) 'leaven/ferment', but the modern combined term came to mean 'inhibiting or opposing enzymatic action'.