12 letters · 18 points in Scrabble
noun a temperamental disposition to be agreeable
originFrom agreeable (from Middle English agreable, from Old French agreable) by analogy with -ability. By surface analysis, agree + -ability. Compare the only attestation before the 18th century (by Geoffrey Chaucer), Middle English aggreablete, agreablete (“favorable disposition, tolerance”), from Middle French agréableté.
Etymology from Wiktionary, CC BY-SA 3.0