5 letters · 8 points in Scrabble
noun the post at the top or bottom of a flight of stairs; it supports the handrail
noun the central pillar of a circular staircase
originInherited from Middle English nowel, *newel, from Old French noel, from either Early Medieval Latin nōdellus (“buckle”, diminutive of nōdus "knot") or Late Latin nucālis (“nut-like”, derivative of nux "nut"). Doublet of noil and noyau.
Etymology from Wiktionary, CC BY-SA 3.0