11 letters · 16 points in Scrabble
originEtymology tree Proto-Indo-European *(s)tey-? Latin stimulus Latin stimulo Latin stimulatusbor. English stimulate Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -tōriusder. Middle English -orie English -ory English stimulatory From stimulate + -ory.
Etymology from Wiktionary, CC BY-SA 3.0