Attidian is a conlang vignette by Jörg Rhiemeier which represents an extinct language once spoken in the League of Lost Languages conworld. The corpus of the language consists of just one inscription:
HIRCVLVA LAFANIANVA MAN DARAF FAL SILBIAS ISAZARIAS
HERCVLES LAFANIVS ME DEDIT TIBI IVNO STELLIFEX
The meaning of the second line, which is in Latin, is "Hercules Lafanius gave me to you, Juno the Starmaker", and the first line in an unknown language almost certainly means the same. Most likely, Attidian is a Hesperic language, as all words in the Attidian inscription appear to have cognates in other, better-known Hesperic languages such as Old Albic.