Looking for a New Name for The Aostach

I've decided to try to come up with a new name for the Aostach. Originally it was Jiyadj which, believe it or not, was from a Klingon dictionary and had something to do with their rite of passage (hard to recall since it has been 10 years or so) and that has been what we called it at home. But, it sounds too much like Jihad and so before writing the book or publishing any blogs, we renamed it to Aostach. But, that name doesn't flow off the tongue well and we never did switch to calling it that at home.

So, I'm after a new name; if you have any ideas, PLEASE send them my way.
Some things that might help (that I've been looking at):

"Iter" is the root for passage and "maturus" is the root for mature, so I tried some combination of those, but didn't come up with anything great.

Madura is the Spanish word for mature and "edad madura" means mature age. This sounds better, but it doesn't make sense to me to use Spanish (why that over any other language). Greek/Latin make some sense, but I haven't found a good combination there yet...

Any thoughts you send my way are greatly appreciated (you can comment on this topic or send me email).

Thanks, Sean