Mammoth Uncensored Word List:
29 - 12 letter words starting with da

dactylically dactyliology dactylograms dactyloscopy daffodillies daggerboards daintinesses daisycutters damasceening damascenings damaskeening damasquining damnableness damselfishes dappernesses daringnesses darmstadtium darraignment dasyphyllous datarecorder daughterhood daughterless daughterlike daughterling daunorubicin dauphinesses daxophonists daydreamlike daylightings