Vale as a personal (feminine) name makes me think of Vicky Vale from
Batman, played by Kim Basinger (though that was her surname). I don't know if I would call that a positive or negative association.
I kind of like the sound, but it also makes me think of "veil," which isn't something I would want to name a child.
Vaila is interesting, but looks like an unrelated name in a totally different language.
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