14 letters · 25 points in Scrabble
originEtymology tree English polydisperse Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English polydispersity From polydisperse + -ity.
Etymology from Wiktionary, CC BY-SA 3.0