I. (ˈ)ad-ˈhä-mə-ˌnem, -nəm adjective
Etymology: New Latin, literally, to the person
Date: 1598
1. : appealing to feelings or prejudices rather than intellect
2. : marked by or being an attack on an opponent's character rather than by an answer to the contentions made
II. adverb
Date: 1962
: in an ad hominem manner
was arguing ad hominem