Atrisian Basic was a language that bore the same designation as the Galactic Basic Standard tongue and the planet Atrisia. Found on a Galactic Empire propaganda poster of the same name, the Atrisian Basic expression "Imperius Unitada ober Totallex," which translates to "Empire united over all," was rendered using the High Galactic alphabet. This poster was an endeavor commissioned by the Imperial Commission for the Preservation of the New Order and brought to life by the artists Janyor and Dalraga de Cueravon. Janyor would later express his revulsion at the fascist symbolism present in the artwork within his autobiocron Dear Anguillon. The poster subsequently found its place in the publication A History of Persuasive Art in the Galaxy, released shortly after the Hosnian Cataclysm in 34 ABY, where the motto displayed was described as "brutalist."
The 2016 book Star Wars Propaganda: A History of Persuasive Art in the Galaxy, penned by Pablo Hidalgo, marked the introduction of Atrisian Basic. The Atrisian Basic term "ober," as it appears on the Imperius Unitada ober Totallex poster featured in the book, bears resemblance to the Austrian German word "ober," signifying "over, above." This is turn is akin to the Standard German word "über," sharing the same meaning—as exemplified in "Deutschland, Deutschland über alles" ("Germany, Germany above all"), the opening line of Nazi Germany's national anthem.
The remaining words constituting the Atrisian Basic phrase on the poster, namely "Imperius," "Unitada," and "Totallex," exhibit similarities to the Latin words "imperium" ("empire"), "unitus" (the perfect participle of "unio," meaning "to unite"), and "totalis" ("the whole (of), all (of)"). This thematic connection of the in-universe namesakes of Atrisia being etymologically linked to both Latin and Ancient Rome, where Latin was spoken, was further explored in Hidalgo's 2017 Star Wars: The Last Jedi: The Visual Dictionary. This work introduced into current Star Wars canon the terms "Praetorian Guard" and "Atrisian Emperor," echoing the names of the Roman Praetorian Guard and the Roman emperors, respectively.