Universal 20 restriction reloaded: the view from Old Italo-Romance

In this work we show that Old Italo-Romance varieties have two types of pragmatic related movement to the left periphery of both the clausal and nominal domains: one that focuses the moved constituent itself and another that marks the moved constituent as background, resulting in emphasis of the non-moved portion. While Focus fronting does not obey the U20 restriction originally proposed in Cinque (2005), (back)grounding does. This counters the idea that only meaningless movements (i.e., movements deriving the canonical word order of a language) need to obey the U20 restriction, since some meaningful movements do as well. After having examined the properties of both types of constructions, we derive the distinction on the basis of the type of feature that triggers the movement. While operators like Focus have their own feature, which is read by the labeling algorithm, all other cases of movement must use the label of the lexical head, which therefore must be contained in the moved subtree. Hence, (back)grounding must drag along the lexical head to be labeled, while Focus does not need to.