Is the Usage "I are" proper English? [closed]

Solution 1:

No, it's not common usage in older English. I think it's a misprint. The 1888 edition has "I am enormously anxious to finish my night at the Duke of Bracciano’s.”

If it isn't a misprint it could conceivably be a device of the translator's, to portray the speaker as affected (artificial, pretentious).

In French, 'Je sommes' certainly has its uses. Evidently this isn't one of them.