"Arvandran" actually refers to two languages which were created by Laurie Gerholtz during or before 2007. Both of these languages appear to be a priori fictional conlangs. Old Arvandran (also "Early Arvandran" and Modern Arvandran are the two languages which are sometimes referred to simply as "Arvandran". Of the two, only information on the " older" form, Old Arvandran, is available on the net.
The Arvandran home page contains a dictionary, grammar sketch and phonology, as well as numerous sample sentences.
vou disamamait na'im mart = "I brought a horse."