- delirium (n.)
[delirium 词源字典]
- 1590s, from Latin delirium "madness," from deliriare "be crazy, rave," literally "go off the furrow," a plowing metaphor, from phrase de lire, from de "off, away" (see de-) + lira "furrow, earth thrown up between two furrows," from PIE *leis- (1) "track, furrow" (see learn).[delirium etymology, delirium origin, 英语词源]