Greek word
saínō
σαίνω
What it means
to wag, i.e. to shake
to wag (as a dog its tail fawningly), i.e. (generally) to shake (figuratively, disturb)
Where it comes from
akin to seíō (σείω)
How the King James translates it
Every place it appears 1
1 Thessalonians3:3