- tidal (adj.)
[tidal 词源字典]
- 1807, a hybrid formation from tide (n.) + Latin-derived suffix -al (1). A tidal wave (1819) properly is high water caused by movements of the tides; erroneous use for "tsunami, great ocean wave caused by an earthquake, etc." is recorded from 1868.[tidal etymology, tidal origin, 英语词源]