Gussie is a shortened version of the given name Augustus or Augusta, Gustave or others.
The name Gusta is a Latin baby name. In Latin the meaning of the name Gusta is: Majestic, grand. The feminine form of Augustus; meaning majestic dignity or venerable, originally given to female relatives of Roman emperors.
Guus [gu-us] as a boys' name is a Latin name, and the meaning of Guus is "great, magnificient". Guus is an alternate form of Augustus (Latin). ASSOCIATED WITH great.