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Throughout the world, Геронтий (Геронтий , Gerontius , Geronty ) is a rare masculine first name. The first name Геронтий is habitual in Russia, where it is a very rare masculine name, and Kazakhstan. Very seldom, Геронтий is the last name as well as the forename.
Геронтий is also a name for the fictitious and mythical characters: Gerontius Took , the Middle-earth, The Hobbit.