2690  chatsar  khaw-tsar'

 a primitive root; properly, 
to surround with a stockade, 
and thus separate from the 
open country; but used only 
in the reduplicated form 
chatsotser {khast-o-tsare'}; 
or (2 Chronicles 5:12) 
chatsorer {khats-o-rare'}; as 
dem. from 2689; to trumpet, 
i.e. blow on that 
instrument:--blow, sound, 
trumpeter.

 see HEBREW for 02689