8 letters · 11 points in Scrabble
noun the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway
originEtymology tree English door Proto-Germanic *stapjaną Proto-West Germanic *stappjan Old English stæppan Middle English steppen English step English doorstep From door + step.
Etymology from Wiktionary, CC BY-SA 3.0