 The current spelling started to be used during the following century and guards no relation with the Catalan adjective for "dangerous" ("perillós").Perellós is generally assumed to be a place where "perelloner" (Catalan for "wild pear tree" or "dogwood tree", "amelanchier ovalis" or "pyrus spinosa" species) grows.However, the hypothesis of a "stony place" ("pedregós" in modern Catalan) cannot be totally ruled out.