t 1 i 1 d 2 a 1 l 1
5 letters · 6 points in Scrabble
Meaning
adjective of or relating to or caused by tides
originFrom tide + -al. Probably a hybrid formation within English. Alternatively it might be from an unattested British Medieval Latin *tīdālis, derived from rare tīda, from Old English tīd. The usual Latin word for “tidal” is aestuālis.
Etymology from Wiktionary, CC BY-SA 3.0