Usage: 7 forms in 11 verses
Form Translated As     In Verse(s)
κώφευσον Be silent LXX.Judg.18.19LXX.2Sam.13.20LXX.Job.33.31LXX.Job.33.33
κωφεύων one being silent LXX.1Sam.10.27
κωφεύσω I shall be silent LXX.Job.13.19
will be silent LXX.Job.6.24
κωφεύσατε Be silent LXX.Job.13.13
κωφεύσαι to be silent LXX.Job.13.5
κωφεύετε silent LXX.2Sam.19.10
εκωφεύσαν they were silent LXX.Judg.16.2

Liddell-Scott-Jones

κωφεύω (kōpheuō) be silent G:V

κωφεύω-εύω,

hold one's peace, [LXX]

LSJ Scripture Refs: LXX.2Kgs.13.20