English Etymology Etymology treeEnglish featherProto-Indo-European *leyg-der.Proto-Germanic *līkąder.Proto-Germanic *-līkazProto-West Germanic *-līkOld English -līċMiddle English -likeEnglish -likeEnglish featherlikeFrom feather + -like. Adjective featherlike (comparative more featherlike, superlative most featherlike) Having the characteristics of plumage. As light as a feather.