As adjectives the difference between purtier and hurtier
is that purtier is (purty) while hurtier is (hurty).
purtier
English
Adjective
(head)
(purty) purty
English
Adjective
(er)
(informal)
* {{quote-book
, year=1939
, author=(John Steinbeck)
, title=(The Grapes of Wrath)
, chapter=22
, passage=Seen a purty' girl down the road. Give her a big wink, too. ' Purty as hell, too.}} hurtier
English
Adjective
(head)
(hurty)
hurty
English
Adjective
(er)
That hurts.