A  scalar  account  of  Mayan  positional  roots     Robert  Henderson     Most  Mayan  languages  have  a  large  class  of  roots  traditionally  called  "positionals"  in   the  descriptive  literature.  While  positional  roots  are  usually  classified   morphologically,  I  will  show  that  giving  positionals  a  scalar  semantics  allows  for  a   robust  semantic  classification  of  this  root  class,  as  well  as  a  deeper  understanding  of   positional-­‐specific  derivational  morphology.