nicety

We met the new captain while we were taking enemy fire and were unable to observe the niceties of formal introductions.

Afterwards I took it back when it was borne in upon me startlingly with what extreme nicety he had estimated the time requisite for the ‘affair.’

[I]f you knew how Selina feels with respect to sleeping at an inn, you would not wonder at Mrs. Churchill’s making incredible exertions to avoid it. Selina says it is quite horror to her—and I believe I have caught a little of her nicety.