10 letters · 14 points in Scrabble
adjective extremely deep
adjective having no bottom
adjective having no apparent limits or bounds
originFrom Middle English botemles, botmeles, equivalent to bottom + -less. Cognate with West Frisian boaiemleas (“bottomless”), Dutch bodemloos (“bottomless”), German Low German boddenloos (“bottomless”), German bodenlos (“bottomless”), Swedish bottenlös (“bottomless”), Icelandic botnlaus (“bottomless”).
Etymology from Wiktionary, CC BY-SA 3.0