Aloha e Richard,
E hoʻāʻo ai au e unuhi i ka huaʻōlelo "hubris" i "hoʻokano" paha. Pololei ʻoe, he huaʻōlelo nani. He hoʻāʻo haʻahaʻa. 
Mahalo ā nui

Aloha Richard 
This is a humble effort, I would use the word "hoʻokano" in translating hubris. You're right, it is a great word. Of course, the context in which it is being used is the key to the most appropriate translation. We could " walaʻau wale "about this word for days on end over beer and boiled peanuts. Just trying to kōkua.

Alohas,
WF