Minuteful

...and he has fought through each minute and its minuteful of pain (happily no minute can contain two minutefuls) during the seven months that have elapsed since we parted from him.

Source: wiktionary

I scarcely slept a minuteful.

Source: wiktionary

And you, imagining them weightless and adept, overcame their lonely gravity and gave them sixty minutesful of grace.

Source: wiktionary

These things move slowly on paper, but the greeting was to me painfully short, there being of it not more than a minuteful, I should say.

Source: wiktionary