Was the river “Ljubljanica” named after the city?

The origins of the name “Ljubljana” are uncertain. Although it seems like it’s related to the Slovenian word for love, “ljubezen,” there are competing theories. One is that it comes from the Latin word alluviana, which comes from the word for flooding. Another theory says that it comes from the old Slavic word, Ljubovid. And was Ljubljana’s river “Ljubljanica” named after the city or vice-versa. The mystery remains.