6 letters · 10 points in Scrabble
noun a mathematical element that when added to another number yields the same number
originFrom Middle English nought, noght, noȝt, from Old English nōwiht, nāwiht, which in turn comes from ne-ā-wiht, which was a phrase used as an emphatic "no", meaning "not anything". Equivalent to ne + ought or ne + a + wight. Doublet of naught and not.
Etymology from Wiktionary, CC BY-SA 3.0