Webster’s Revised Unabridged Dictionary · 1913
Miff
Miff (mĭf), n. [Cf. Prov. G. muff sullenness, sulkiness, muffen to be silky, muffïg sullen, pouting.] A petty falling out; a tiff; a quarrel; offense. Fielding.
Miff, v. t. To offend slightly. [Colloq.]