I was mostly aiming for a FF sounding name which meant either something related to weather or something pretentious in Latin. Or both!

So

Gale = a very strong wind.

Valerian = A Latin name and a Roman emperor, name means "strong, healthy". It's also the name of a plant. I was going to go with "Erion" which also means "Wind" but "Gale Erion" doesn't have as strong a ring to it. I was amused to find out the Valerian set was a thing at the end of Heavensward.

In the FFXIV theater that is my brain Gale's birth name was "Galenaeu" but he calls himself "Gale" because he thinks it makes him seem awesome.