Extended Strong's Greek Lexicon (Abbott-Smith based)
psalm
Usage: ψαλμός, -οῦ, ὁ (ψάλλω), [in LXX chiefly for מִזְמוֹר ;] __1. a striking, twitching with the fingers (Eur., al.), hence, a striking of musical strings (Æsch., a1.), and hence in later writers, __2. a sacred song sung to musical accompaniment, a psalm (LXX): 1Co.14:26, Eph.5:19, Col.3:16; of OT psalms, Luk.24:44, Act.13:33; βίβλος ψαλμῶν, Luk.20:42, Act.1:20.† SYN.: see: ὕμνος (AS)