"of or pertaining to ancient or modern Persia," c. 1300, Percien, from Latin *Persianus (the adjective via Old French persien), from Persia "Persia" (see Persia). As a noun, "native or inhabitant of ancient or modern Persia." First record of Persian cat is from 1785; they were first brought to Europe from Persia in 17c.
perseverant
perseverate
perseveration
persevere
Persia
Persian
persiflage
persimmon
Persis
persist
persistence