Strongs: H2912
H2912 @ טחן ţâchan taw-khan' A primitive root; to grind meal; hence to be a concubine (that being their employment): - grind (-er).
Exodus:32:20
Numbers:11:8
Deuteronomy:9:21
Judges:16:21
Job:31:10
Ecclesiastes:12:3
Isaiah:3:15
Isaiah:47:2