Tidal
/ˈtaɪ.dəl/noun
Relating to the rise and fall of the sea caused by the moon and sun.
Did you know?The word comes from Old English *tīd* meaning “time” or “season,” so the idea behind *tidal* is literally tied to rhythm, timing, and recurring cycles.
Etymological Timeline
Proto-Indo-European
PIE
*dī-
“to divide, apportion”
Old English
OE
tīd
“time, season, fixed period”
Old English
OE
tīdlic
“timely, seasonal”
Middle English
ME
tidal
“of or belonging to the tides”
Modern English
English
tidal
“relating to the tides”