çerm

skin, leather

From Avestan carəman- "leather".

Latin parthica (pellis) "Parthian (leather)"

Old French parchemin "the skin of sheep or goats prepared for use as writing material",
Medieval Latin pergamentum, percamentum,
Late Latin pergamena "parchment",
Late Greek pergamenon "from Pergamon" "Pergamum" the city (Bergama) in Mysia (Manisa) in Asia Minor (Anatolia) where parchment was introduced by Parthians and supposedly first was adopted as a substitute for papyrus in 2c. B.C.E.

parchment