Currently their is no easy way to do this. Basically we can gain allot of info about what something is based on its Unique ID. My guess is its Oracle Winter class ability based on the Unique ID of "
cOraWinter"? I am guessing based on the "
c" tell us its a Class Thing "
Ora" tells us Oracle Class and "
Winter" is something to do with the name of the ability.
So based on that info I assume its maybe a Oracle Mystery and went to
d20pfsrd to look. And sure enough their is a
Winter Mystery class ability for the Oracle. At the bottom of the page is a section 15 which says its from People of the North.
Like I said its not really a great way.