Pronunciation: \ge-ron-tius, ger(o)-ntius\
Gender / Sex: boy
Meaning: old man
Sounds Like: Gerant, Geraint, Jerant, Grant, Grantley, Grantham, Grantly
Similar Names: Jeronimus
Gerontius \ge-ron-tius, ger(o)-ntius\ as a boy's name is of Latin origin, and the meaning of Gerontius is "old man". The root of "geriatic" and "gerontology".
Baby names that sound like Gerontius are Gerant, Geraint, Jerant, Grant, Grantley, Grantham and Grantly. Another similar baby name is Jeronimus.
Gerontius is not a popular first name for men and an equally uncommon surname or last name for both men and women. (1990 U.S. Census)