inhibition Look up inhibition at Dictionary.com
late 14c., from O.Fr. inibicion, from L. inhibitionem (nom. inhibitio) "a restraining," from stem of inhibere "hold in, restrain, hinder," from in- "in, on" + habere "to hold" (see habit). Psychological sense of "involuntary check on an expression of an impulse" is from 1876.