stick to

But some, the ones with real stick-to-it-iveness, join a gym and start a program like CrossFit.

No estimate of Mr. Klein could be called complete which did not take account of his grit and stick-to-it-iveness.

A fairly simple sentence is memorized; let us say, Ich kann meinen Stock heute nicht nehmen, I cant take my stick to-day.

I misdoubt, though, whether they've got enough substance and stick-to-the-ribs to make a meal out of all by themselves.

So it has been done, and can be done in your case; but it all depends upon you, your zeal and your stick-to-it-iveness.

There's a mortgage on the property; Old Stick-to-rights would be very glad to pay it off.