'antieugenic' originates from Greek elements: the prefix 'anti-' (from Greek 'anti') meaning 'against' and the root 'eugenes' meaning 'well-born' (from which English 'eugenic' is derived).

'eugenes' entered modern usage via Latin/Modern French into English as 'eugenic', and English later combined the prefix 'anti-' with 'eugenic' to form 'antieugenic'.

Initially, 'eugenes' meant 'well-born'; over time 'eugenic' came to mean 'relating to improving hereditary qualities', and 'antieugenic' evolved to mean 'opposed to those policies or practices'.