Heretic Middle English: from Old French heretique, via ecclesiastical Latin from Greek hairetikos ‘able to choose’ (in ecclesiastical Greek, ‘heretical’), from haireomai ‘choose’. In the Encyclopaedia Britannica one can read:“The word heresy is derived from the Greek hairesis which originally meant an act of choosing, and so came to signify a set of philosophical opinions or the school professing them. As so used the term was neutral, but once appropriated by Christianity it began to...
