Mammoth Uncensored Word List:
65 words ending with gy, 12 letters long

anthropology astrobiology astrogeology bacteriology biocoenology chromatology dactyliology dialectology dysteleology ecclesiology epidemiology epiphytology epistemology ethnobiology geohydrology gnotobiology grammatology hamartiology hepaticology historiology hydrobiology hydrogeology ichthyophagy kremlinology liturgiology macroecology microbiology mycotoxology neurobiology neurypnology onomasiology opthalmology palaebiology paleobiology paleoecology paleontology paleozoology paradoxology parasitology paroemiology pathobiology perinatalogy perinatology pharmacology pharyngology photobiology photogeology placentology pneumatology protistology protozoology pyramidology radiobiology radioecology rheumatology rontgenology sociobiology stoechiology stoichiology symptomology tempestology thaumatology traumatology zoopathology zoophytology