[2] Parthian loanwords appear in everyday Armenian vocabulary; nouns, adjectives, adverbs, denominative verbs, and administrative and religious lexicons.
[4][5] The Parthian language was rendered using the Pahlavi writing system, which had two essential characteristics.
The main sources for Parthian are the few remaining inscriptions from Nisa and Hecatompylos, Manichaean texts, Sasanian multilingual inscriptions and remains of Parthian literature in the succeeding Middle Persian.
– Man wāxt ku: Bizišk hēm až Bābel zamīg.
[...] ud pad hamāg tanbār hō kanīžag društ būd.
Although Parthian was quite similar to Middle Persian in many aspects, clear differences in lexical, morphological and phonological forms can still be observed.