This term is derived from Arabic, and is only used in the inland sicilian villages between Agrigento and Palermo, like Bivona, which is full of χanèe. The initial X Is pronounced with a guttural fricative /x/, as in the Greek letter Chi. Some other spelling versions are hanìa, hanèia, khanèa or canèia. Wikipedia page: https://it.wikipedia.org/wiki/Xan%C3%A8a?wprov=sfla1
A close or pend in Scotland is the same, not necessarily with an arch but not exclusively so.