حنين بن إسحاق
In medieval times, the identification of these stars with the dogs of Boötes arose through a mistranslation: some of Boötes's stars were traditionally described as representing the club (, ) of Boötes. When the Greek astronomer Ptolemy's "Almagest" was translated from Greek to Arabic, the translator Hunayn ibn Ishaq did not know the Greek word and rendered it as a similar-sounding compound Arabic word for a kind of weapon, writing , which means 'the staff having a hook'.