5 letters · 8 points in Scrabble
noun a low area (especially a marshy area between ridges)
originPossibly from Middle English swale (“a shady place, a shadow”), perhaps of North Germanic origin; akin to Old Norse svalr (“cool, fresh”), Icelandic svalir (“a balcony running along a wall”).
Etymology from Wiktionary, CC BY-SA 3.0