stiffen

This leads them to weaken and stiffen over time and usually affects how you walk, talk, eat and breathe.

It's not just in majors that Scheffler's resolve stiffens on a Sunday.

Here, there’s actually a very good doom metal electronic score by John Murphy and David Fleming, but the movie stiffens up whenever it needs to get real.

When her focused gaze meets yours, a coiled look of resignation stiffens her soft face, and it is painful to see.

The effort to scrap the provision to stiffen penalties drew sweeping criticism from the governor and on social media.