Pyros_Eien
Member
Care to enlighten?
The wiki has some explanations, found that when I was trying to make sense of Ignis' name, the others were relatively obvious.
Noctis Lucis Caelum is a latin expression which means "Sky of the Night's Light" or "Sky of the Light's Night".
Ignis doesn't mean anything really, Ignis is fire, Stupeo is surprising/stunning and Scientia is knowledge, so you can make up your explanation.
Gladiolus Amicitia is Sword Friend, or possibly something to do with the gladiolus flower meaning in japanese.
Prompto Argentium is Quicksilver.