1570s, from Middle French acerbité, from Latin acerbitatem (nominative acerbitas) "harshness, sharpness, bitterness," from acerbus "bitter to taste, sharp, sour, tart" (related to acer "sharp;" compare Latin superbus "haughty," from super "above"), from Proto-Italic *akro-po- "sharp," from PIE *ak- "sharp" (see acrid). Earliest use in English is figurative, of "sharp and bitter" persons. Of tastes, from 1610s.
1. His acerbity to his daughter came home to roost.
2. The biggest to amino acerbity demand still is animal feed additive.
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4. Why can acerbity sick at heart feel after I drank honey water?
5. Wake up these days of total acerbity backache how to return a responsibility?