arct-
combining form 
or arcto-
Etymology: Latin arct-, from Greek arkt-, arkto-, from arktos bear, Ursa Major, north — more at arctic 
1. : north : arctic 
< Arctalia >
< Arctogaea >
2. : bear 
< Arctoidea >
< Arctostaphylus >
or arcto-
1.
< Arctalia >
< Arctogaea >
2.
< Arctoidea >
< Arctostaphylus >