As a noun parka
is a parka.
As an adjective parky is
(british) cold, but not excessively so.
parka
English
Noun
(
en noun)
A long jacket with a hood which protects the wearer against rain and wind.
*
parky
English
Adjective
(er)
(British) Cold, but not excessively so.
Synonyms
* chilly, cool