Or masor {aw-sore'}; from eser; ten; by abbrev. Ten strings, and so a decachord -- (instrument of) ten (strings, -th).
see HEBREW eser
H6218. asor
עָשׂוֺר, and (Exodus 12:3) עָשׂר noun [masculine] a ten, decade; —
1 usually of days:
a. a period of ten days Genesis 24:55 (J).
b. in phrase, לַחֹדֶשׁ (עָשׂר) בֶּעָשׂוֺר on the tenth of the month Leviticus 25:9 (H), Ezekiel 20:1; 24:1; 40:1; Exodus 12:3; Leviticus 16:29; 23:27; Numbers 29:7; Joshua 4:19 (all P), 2 Kings 25:1 = Jeremiah 52:4, 12 (seventh day in "" 2 Kings 25:8).
2 of strings of instrument: ע ׳נֵבֶל harp, a ten (-stringed one) Psalm 33:2; 144:9; ׳ע alone 92:4 upon a ten (-stringed instrument).