Claim: Modern Greek word boza is believed to be cognates with the Old Turkic buχsı or buχsum, but the drink under the name boza is first attested in Abu Hayyan al-Gharnati's early 14th century Kipchak Turkic work Kitab al-'idrak li-lisan al-'atrak
Evidence: Modern Turkish word boza is believed to be cognates with the Old Turkic buχsı or buχsum.