geogeny
/dʒɪˈɒdʒɪni/noun
The origin or formation of the earth; specifically the geological history of the earth; (formerly also) †a branch of geology dealing with this (obsolete ).
Origin
Late 18th century; earliest use found in Transactions of the American Philosophical Society. From geo- + -geny, perhaps after French géogénie or its etymon German Geogenie.