Exactly. It's an unfortunate thing about FF that we're not allowed to change our character names, because a lot of people seem to take the name floating above our heads as The One True Namecanon. Don't be afraid to take a different name, and perhaps come up with a fun explanation for it. C'kayah's maternal grandmother was a Moonkeeper, so he sometimes takes her surname when he introduces himself.
That said, the suffix Nunh does have all sorts of connotations, and you can have fun playing with them. C'kayah, for instance, is acidly nasty towards anyone taking that title who's out adventuring ("You're a Nunh? Where are your females? Back in the tribe? Who's watching out for them? The Tias? Mmmm... Interesting. And you think they're still yours?"), which provides an interesting hook for whatever you want to respond ("Um... no... I've lost them..." or "They've come with me" or "That sounds like a challenge, I accept!" or whatever you want to play it as).
That said, the suffix Nunh does have all sorts of connotations, and you can have fun playing with them. C'kayah, for instance, is acidly nasty towards anyone taking that title who's out adventuring ("You're a Nunh? Where are your females? Back in the tribe? Who's watching out for them? The Tias? Mmmm... Interesting. And you think they're still yours?"), which provides an interesting hook for whatever you want to respond ("Um... no... I've lost them..." or "They've come with me" or "That sounds like a challenge, I accept!" or whatever you want to play it as).
