σείω
seivw
seio
{si'-o}
apparently a primary verb; to rock (vibrate, properly, sideways or to and fro), i.e. (generally) to agitate (in any direction; cause to tremble); figuratively, to throw into a tremor (of fear or concern):--move, quake, shake.
Strong's Greek Bible Dictionary
σείω
seivw
seio
{si'-o}
apparently a primary verb; to rock (vibrate, properly, sideways or to and fro), i.e. (generally) to agitate (in any direction; cause to tremble); figuratively, to throw into a tremor (of fear or concern):--move, quake, shake.