quicken (v.)youdaoicibaDictYouDict[quicken 词源字典]
c. 1300, "come to life; give life to," from quick (adj.) + -en (1). Meaning "become faster" is from 1805. Related: Quickened; quickening. An earlier verb was simply quick (c. 1200), from Old English gecwician.[quicken etymology, quicken origin, 英语词源]