T'ART, adjective 1. Acid; sharp to the taste; acidulous; as a tart apple. 2. Sharp; keen; severe; as a tart reply; tart language; a tart rebuke. T'ART, noun [Latin tortus, twisted; and this may be the primary sense of tar, acid, sharp, and hence this noun, something acid or made of acid fruit.] A species of pie or pastry, consisting of fruit baked on paste.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI