arcto-, arct- +

(Greek: of the bear, bear [the animal]; or the north, northern)

arctomachy (s) (noun), arctomachies (pl)
Fights between bears.
arctophilist (s) (noun), arctophilists (pl)
Someone who collects teddy bears: or a collector of teddy bears: Mrs. Lawson used to be an arctophilist with at least a hundred little toy bears, but after a while she donated them all to a charity.
Arctosaurus
An “arctic lizard” from Late Triassic Cameron Island, Canada, north of the Arctic Circle. Named by Andrew Leith Adams in 1875.
Arcturus
The brightest star in the constellation Bo├Âtes and the fourth brightest star in the sky.
Arthur
A masculine proper name, from Middle Latin Arthurus/Arturus, from Welsh arth, "bear" a cognate with Greek arktos, Latin ursus.
Bear in the Sky
As one goes north from the equator, the stars of the northern sky seem to climb higher in the sky. Eventually, the most prominent constellation of the northern sky, the "Big Dipper" or "Great Bear" would be overhead at some time of the night.

The Greeks referred to the north as the arctic, from arktos, or "bear". It was the region where the "bear" was overhead. The "Great Bear" is known to modern astronomers by the Latin name Ursa Major.

circumantarctic (adjective) (not comparative)
Located around the antarctic region.
cynarctomachy (s) (noun), cynarctomachies (pl)
The fighting of dogs and bears; bear-baiting.
Holarctic
Of North America, Europe, and Asia; found in or characteristic of the regions of North America, Europe, and Asia combined, which share many faunal (animal) characteristics.
nearctic (adjective), more nearctic, most nearctic
Relating to or located in the region of plant and animal life in the Arctic and temperate areas of Greenland and North America.
palearctic
1. Relating to or native to the biogeographic region of the Arctic and immediately adjacent temperate regions of Europe, Asia, and Africa.
2. Belonging to a region of the earth's surface which includes all of Europe to the Azores, Iceland, and all of temperate Asia.
subarctic (adjective) (usually not comparable)
1. Of or relating to latitudes just south of the Arctic Circle as in landscape or weather conditions.
2. Those regions of the Northern Hemisphere associated with taiga or subarctic climates, having temperatures below freezing for over half the year but often over 80 degrees Fahrenheit during the summer.

Related "bear, bears (animals)" word units: Berserk; ursi-.