English Etymology Etymology treeEnglish sheetProto-Indo-European *leyg-der.Proto-Germanic *līkąder.Proto-Germanic *-līkazProto-West Germanic *-līkOld English -līċMiddle English -likeEnglish -likeEnglish sheetlikeFrom sheet + -like. Adjective sheetlike (comparative more sheetlike, superlative most sheetlike) Alternative form of sheet-like.