psalter
Concise Oxford English Dictionary © 2008 Oxford University Press:
psalter /ˈsɔːltə, ˈsɒl-/
▶noun a copy of the biblical Psalms, especially for liturgical use.
■ (the psalter) the Book of Psalms.
– origin OE (p)saltere, via L. psalterium from Gk psaltērion ‘stringed instrument’.
'psalter' also found in these Oxford entries:

