Etymology?:
apparently from šāmēn שָׁמֵן ‘rich’ through the idea of plumpness
Roots:
שׁמן
šᵊmōneh n
1) eight, eighth
1a) eight (as cardinal number)
1b) eighth (as ordinal number)
1c) in combination with other numbers
Mentioned in Genesis 21:4, 22:23, 14:14, 5:4, 5:7, 5:10, 5:13, 5:16, 5:19, 17:12, 5:17 Exodus 26:25, 36:30, 26:2, 36:9 Numbers 7:8, 29:29, 2:24, 3:28, 4:48, 35:7 Deuteronomy 2:14 Joshua 21:41 Judges 20:25, 20:44, 10:8, 3:8, 12:14, 3:14 1 Samuel 17:12, 4:15 2 Samuel 23:8, 24:9, 8:13 1 Kings 15:1, 7:10, 16:29, 7:15 2 Kings 3:1, 22:1, 25:17, 24:8, 24:12, 23:23, 22:3, 10:36, 8:17, 15:8 Jeremiah 52:21, 41:15, 32:1, 52:29 Ezekiel 40:9, 40:31, 40:34, 40:37, 40:41, 48:35 Micah 5:4 Ecclesiastes 11:2 Ezra 8:18, 2:16, 2:23, 2:6, 2:41, 8:11, 8:9 Nehemiah 11:12, 11:14, 11:8, 7:21, 7:45, 7:27, 7:11, 7:26, 11:6, 7:44, 7:13, 7:15, 7:16, 7:22 1 Chronicles 12:31, 24:4, 18:12, 29:7, 16:38, 25:7, 25:25, 26:9, 12:25, 12:32, 12:36, 23:3, 24:15 2 Chronicles 34:3, 13:1, 13:3, 11:21, 29:17, 34:1, 34:8, 21:5, 21:20, 36:9, 35:19