A word in the Gnomish Lexicon of the 1910s glossed “plane tree” [perhaps Genus Platanus], apparently an elaboration of the plural mabin of G. mô/mab “hand” (GL/55). Tolkien said it was “usually + aj. fathwed [tasselled]”, presumably *mabinos fathwed “tasseled plane tree”. He also said that m. gwilbriniol, presumably G. *mabinos gwilbriniol, was another word for “sycamore” and was equivalent to G. mavlantos.