Very. Colloquial in England and the United States.
The day was gone afore I got out of the woods, and I got proper frightened.--Sam Slick in England, ch. 15.
·adj Belonging to one; one's own; individual. II. Proper ·adj Becoming in appearance; well formed; ...
Webster's Dictionary of the English Language
A movement which some stars are found to possess, independent of the apparent change of place due to...
The Sailor's Word-Book