Probably strengthened from psao (to rub or touch the surface; compare psocho); to twitch or twang, i.e. To play on a stringed instrument (celebrate the divine worship with music and accompanying odes) -- make melody, sing (psalms).

see GREEK psocho

ψαλλέτω (psalletō) − 1 Occurrence

ψάλλοντες (psallontes) − 1 Occurrence

ψαλῶ (psalō) − 3 Occurrences