I take inspiration from various mythologies when I create characters for a fantasy setting, and I hadn't used Irish/Scottish/Gaelic in a long time. I checked a name dictionary ("bright-minded" "storm") and an index on mythology, choosing names for my retainers and chocobo that fit (e.g., my chocobo is snow white and named Lugh). I chose my jobs the same way (paladin, dragoon, and white mage are among my mains).