Greek word
psalmós
ψαλμός
What it means
a set piece of music, i.e. a sacred ode (accompanied with the voice, harp or other instrument
a set piece of music, i.e. a sacred ode (accompanied with the voice, harp or other instrument; a "psalm"); collectively, the book of the Psalms
Where it comes from
from psállō (ψάλλω)