1895, American English, coined from mortuary + -ician, as in physician.
An undertaker will no longer be known as an "undertaker and embalmer." In the future he will be known as the "mortician." This was decided on at the second day's meeting of the Funeral Directors' Association of Kentucky, which was held in Louisville. [The Medical Herald, July 1895]
mortar
mortarboard
mortgage
mortgagee
mortgagor
mortician
mortification
mortified
mortify
Mortimer
mortise