9 letters · 14 points in Scrabble
adjective based on or subject to individual discretion or preference or sometimes impulse or caprice
originEtymology tree Latin arbiter Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -ārius Latin arbitrāriusder. Middle English arbitrarie English arbitrary From Middle English arbitrarie, Latin arbitrārius (“arbitrary, uncertain”), from arbiter (“witness, on-looker, listener, judge, overseer”).
Etymology from Wiktionary, CC BY-SA 3.0