Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Musicpsalterypsal‧ter‧y /ˈsɔːltəri $ ˈsɒːl-/ noun (plural psalteries) [countable] APMan ancient musical instrument with strings stretched over a boardOrigin psaltery (1200-1300) Old French sauterie, from Latin psalterium; → PSALTER ldoceonline.com