13 letters · 19 points in Scrabble
originEtymology tree English allergen Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English allergenic Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English allergenicity From allergenic + -ity.
Etymology from Wiktionary, CC BY-SA 3.0