8 letters · 10 points in Scrabble
originEtymology tree English test Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English testable From test + -able.
Etymology from Wiktionary, CC BY-SA 3.0