“It was the easiest way, and, beyond all comparison, the properest.”
“There is a certain magic about his properest action which stupefies your powers of observation, so that though it is done before you, you wist not of it.”
“The beginning, however, of every visit displayed none but the properest feelings, and this being of necessity so short might be hoped to pass away in unsullied cordiality.”
properer
(nonstandard) comparative form of proper: more proper