So far in this category, I know of:-
jabbI'Id :: used once in canon as "data transmission", used by us often as "email message", until QIn = "message" or "spearhead" was revealed.
Duj :: used in canon as "spaceship", used by us often as "car", "any vehicle".
Are there any other Klingon words or other morphemes which have acquired new meanings in this sort of way?