traitorously

Friendship is a wide portal, and sometimes admits love; had it served her traitorously in this?

Directly at the entrance lay about 50 dead inhabitants who had been shot, because they had traitorously fired on our troops.

Heretofore they must have been traitorously below their duty, or now mutinously beyond it.

The officer who had thus traitorously caught me bowed low and said, Hearing and obedience!

It was neither studiedly cold, nor absurdly brief, nor traitorously tremulous.