9 letters · 14 points in Scrabble
noun the product of all the integers up to and including a given integer
adjective of or relating to factorials
originEtymology tree English factor Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisder. Old French -ialder. Middle English -ial English -ial English factorial From factor + -ial.
Etymology from Wiktionary, CC BY-SA 3.0