Arcturus
The name Arcturus means “a gathering together”.
Easton's Bible Dictionary 1897
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.
Smith's Bible Dictionary 1863
(bear-keeper). The Hebrew words ’Ash and ’Aish , rendered "Arcturus" in the Authorized Version of (Job 9:9; 38:32) in conformity with the Vulgate of the former passages are now generally believed to be identical, and to represent the constellation Ursa Major, known commonly as the Great Bear or Charles’ Wain.
International Standard Bible Encyclopedia 1915
ark-tu'-rus: The "Plough" or "Charles's Wain" is intended. See ASTRONOMY, sec. II, 13.