Origin could be derived from Polish word olsza or olcha, which means alder tree. Another inscription, at Ebchester, refers to him as "Cocidius Vernostonus", Cocidius of the alder tree. The river's name is derived from "alor" an Old English word for the alder tree. Alisal means Alder tree (sycamore) in Spanish. The first tree they find is an alder tree. The village was known in 1291 as "Bykenalre" which means "Bica's alder tree". The adult mite lives on alder tree sap, sucked from the cell tissues. Vilkha ( , Olkha "Alder tree") is Ukrainian perspective rocket complex with guided ammunition. Alnus nepalensis is a large alder tree found in the subtropical highlands of the Himalayas.