"Bear-keeper, the name given by the ancients to the brightest" star in the constellation Bootes. In the Authorized Version (Job "9:9; 38:32) it is the rendering of the Hebrew word 'ash, which" probably designates the constellation the Great Bear. This word (`ash) is supposed to be derived from an Arabic word meaning "night-watcher, because the Great Bear always revolves about the" "pole, and to our nothern hemisphere never sets."

See where Arcturus occurs in the Bible...

Definition of Arcturus:
"a gathering together"