Remathilis
Legend
Problematics aside, I included barbarian and warlord because those are exactly "job title" class names. While they can be used as titles (Gord the Rogue, Conan the Barbarian) most people would not willingly use that word to describe what they do. Compared to bard, ranger, paladin, druid, or even cleric and wizard, they are descriptions of the type of character they are, not job titles. Illrigger fits squarely in that category. I just don't see a world where the villain walks into town and people begin to whisper "Look, it's Moarblud the Illrigger!"I think that's actually 2 different problems, which highlight a lot of the ongoing archetypal problems with the classes in general. The Fighter and Rogue suffer from being too generic to actually be a profession or vocation. All soldiers, swashbucklers, knights and even paladins are fighters.
Warlord and Barbarian have the other issue, where a substitution is happening for a more accepted usage (though D&D has and a lot of work to wear down Barbarian to its preferred primary meaning) so no one would use those words to describe themselves, because they communicate something else. It's interesting, because you can imagine words that wouldn't have this problem, I'd probably go with Berserker and Captain (maybe Officer if there's a risk of nautical confusion).
It reminds me a little of one of my problems with Monte Cooks Arcana Unearthed/Evolved where every class purposefully had a nonsense name to disconnect them with archetypal baggage. While it does break assumption about "barbarians being furry loincloth" and "bards being troubadours", it also was hard to conceptualize and explain what an Oathsworn, Greenbond or Unfettered was.