effete: [17] Latin effētus meant literally ‘that has given birth’. It was a compound adjective, based on the prefix ex- ‘out’ and fētus ‘childbearing, offspring’ (source of English foetus). Its use spread metaphorically first to ‘worn out by giving birth’ and finally to simply ‘exhausted’, the senses in which English originally acquired it. The word’s modern connotations of ‘overrefinement’ and ‘decadence’ did not develop until the 19th century.
