High Quality Content by WIKIPEDIA articles! Arcaicam Esperantom ("Archaic Esperanto") is a constructed language created to act as a fictional `Old Esperanto,` in the vein of languages such as Old English or the use of Latin citations in modern texts. It was created by Manuel Halvelik as part of a range of stylistic variants including Gavaro (a slang), Popido (a patois) and a scientific vocabulary closer to Greco-Latin roots.