Why "he or she" and "hir" are inferior solutions to the problem of epicene singular pronouns.
• From Commentary:
To be sure, George W. Bush was hated. He had been the object of a startling amount of contumely during his first term of office, a phenomenon that had already occasioned much comment in the public prints.
M-W:Etymology: Middle English contumelie, from Middle French, from Latin contumelia
: harsh language or treatment arising from haughtiness and contempt; also : an instance of such language or treatment