retrogress

This was truly consequential, but it was less a matter of making progress than of preventing retrogress.

In extremely exceptional instances the disease, after involving a small part, may retrogress and recovery take place.

At times the patches retrogress, involution taking place with or without slight sieve-like atrophy or scarring.

That certain animals degenerate or retrogress in their development is susceptible of ready and familiar illustration.

But it must be a slow, and occasionally, an interrupted progress, after a sad retrogress of nearly twelve years.

What had caused the man to retrogress Luis and Luise Obispo?