From negative cleft to external negator
This chapter discusses the diachronic development of the Jewish Babylonian Aramaic negator lāw, which developed from the univerbation between the sentential negator and agreement morphology in negative clefts. Whereas the semantics of negative clefts is retained in the new negator, their biclausal structure is replaced by a monoclausal one with lāw merged in the clausal left periphery. The negator then takes propositional scope and expresses the meaning of external negation (‘it is not the case’). Syntactically, it is merged in SpecFocP in the extended CP-domain, argued to host English negative DPs/PPs and wh-words. Finally, the chapter extends the analysis to Sicilian neca, opening up the route to consider the development of an external negator from a negative cleft as a path of change that has hitherto been left unexplored. This chapter also demonstrates how a similar semantic interpretation associated with two different syntactic structures can be a trigger for syntactic reanalysis.