Mammoth Uncensored Word List:
83 words ending with gy, 11 letters long

aerobiology agrobiology agrogeology agrostology amphibology arachnology archaeology biocenology campanology carcinology climatology cosmetology criminology cryobiology dactylology dermatology diabolology dogmatology eccrinology electrology endemiology entomophagy eschatology geocryology geostrategy gerontology gigantology gnomonology graminology gynaecology haematology heresiology herpetology heterophagy ichthyology insectology kinesiology laryngology lichenology malariology martyrology meteorology methodology myrmecology narratology neonatology odonatology olfactology onomatology onychophagy orchidology ornithology ostreophagy pantheology perissology phraseology planetology primatology pteridology pulmonology pyroballogy reflexology scientology semasiology sindonology soteriology spectrology spelaeology sphagnology sphygmology stomatology suicidology symbolology synoecology syphilology terminology thanatology thaumaturgy venereology vexillology victimology volcanology vulcanology