a. colloq. rare0. [f. TIFF sb.3 + -ISH1.] Given to tiffs, ready to take offence; pettish, peevish.

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1855.  in Clarke.

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1864.  in Webster.

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1875.  Bury & Norwich Post, 23 Nov., 7/5. Gladwell said that he certainly had had a little to drink, when the policeman went up to him in a ‘tiffish’ sort of way, and ordered him about.

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