ad rem To the thing. Translated as, 'to the matter at hand; to the point; relevant' can be presented in various ways. This phrase contrasts with ad hominem in that debaters who argue ad rem address the matter at hand to score points in the debate; debaters who argue ad hominem personally attack their opponents to score points.
to the matter in hand/directly relevant
relevant; pertinent: an ad rem remark. · without digressing; in a straightforward manner: to reply ad rem.