voracity (n.)youdaoicibaDictYouDict[voracity 词源字典]
1520s, from Middle French voracité (14c.) or directly from Latin voracitatem (nominative voracitas) "greediness, ravenousness," from vorax (genitive voracis) "greedy, ravenous, consuming," from vorare "to devour," from PIE *gwor-a-, from root *gwere- (4) "to swallow, devour" (cognates: Sanskrit girati "he swallows," garah "drink;" Greek bibroskein "to eat," brosis "eating;" Lithuanian geriu "to drink," gìrtas "drunk;" Old Church Slavonic žiro "to swallow," grŭlo "gullet").[voracity etymology, voracity origin, 英语词源]