Ap-pāir', v. t.

v. t. [O. Eng. apaire, apeire, appeir, Norm. Fr. appeirer, from Lat. ad and pejorare, to render worse, to grow worse, from pejor, worse, compar. of malus, bad; Fr. pire, Pr. peire; A-S. aperan, to pervert. See IMPAIR.] To impair. [Obs.]