Catharine \c(a)-thari-ne, cath(a)-rine\ as a girl's name is a variant of Catherine (Greek) and Katherine (Greek), and the meaning of Catharine is "pure". See also Cathy.
The baby name Catharine sounds like Katharine, Cathrine, Catharyne, Catharina, Catharin and Catarine. Other similar baby names are Cathaline, Catarina, Kathyrine, Kathrine, Katharyne, Catrine, Cathryne, Cathrinn, Cathline, Cathirin, Catherinn, Catherina, Catherin, Caterine, Catharyna and Kathaline.