Idensis is a Spanish name - I remember it from Albuquerque as a surname and I do think when I saw it as a forename it was typically male. I suppose it's connected to the Latin Idem 'likewise, the same' but never really looked into it. It seemed to be used as a 'family name' with the meaning having little to do with the decision.
Cyndia and
Cynthia would be the same - in Italian it would be
Cinzia ;o)
Devon