When I forked Ikarus to create Vicare I wanted a cool name. I chose Vicare, pronounced the etruscan way, because… you know… etruscs are cool. Vicare is the etruscan translation of Ikarus.
Now I have to admit I like the italian translation more: Icaro. Every now and then I am tempted to rename everything from Vicare to Icaro; that would be crazy. But the future of Vicare lies with the typed language, which has incompatibilities with the R6RS language that was the official one in Vicare. A global renaming is not excluded.