time: [OE] Time originally denoted ‘delimited section of existence, period’. Its ultimate source is the Indo-European base *dī- ‘cut up, divide’. This passed into prehistoric Germanic as *tī- (source also of English tide), and addition of the suffix *-mon- produced *tīmon – whence English time and Swedish timme ‘hour’. The application of the word to the more generalized, abstract notion of ‘continuous duration’ dates from the 14th century. => tide[time etymology, time origin, 英语词源]