Origin: bef. 900; < LL psaltērium the Psalter, L: a psaltery < Gk psaltrion stringed instrument; r. ME sauter (< AF < LL) and OE saltere (< LL, as above)
Psal·ter also psal·ter (sôl'tər) n. A book containing the Book of Psalms or a particular version of, musical setting for, or selection from it.
[Middle English, from Old English psaltere and Old French psaultier, both from Late Latin psaltērium, from Latin, psaltery, from Greek psaltērion; see psaltery.]