What does Icauna mean in Latin?

Icauna, a proper noun, means “Yonne (a left tributary of the Seine in modern France)”.

What is the genitive of Icauna?

The genitive singular is Icaunae. Icauna is feminine, first declension.

proper noun · femininefirst declension

Icauna f sg (genitive Icaunae)

What does Icauna mean in Latin?: Icauna, a proper noun, means “Yonne (a left tributary of the Seine in modern France)”.
What is the genitive of Icauna?: The genitive singular is Icaunae. Icauna is feminine, first declension.