Verb meaning "to robust"

I would use "strengthen", "fortify", or "harden", although "harden" has a distinct security meaning.

There's no single word to describe making software more robust. Some ways of making software more robust are: simplify, debug, re-factor (especially functional decomposition and code re-use), make the interface more user friendly, make the program resilient to input errors and even recover from some runtime errors, etc.

• The closest to "make robust" that I can come up with is:

revitalize

vt

: to give new life or vigor to

• The second word that comes to mind is:

enhance

vt

: heighten, increase; especially : to increase or improve in value, quality, desirability, or attractiveness

Sometimes I use to mature when I need a verb, such as in process descriptions.

bolster: v. Support or strengthen; prop up: "the fall in interest rates is starting to bolster confidence".

For example, "You will help refactor the code and bolster the test suite."

"Harden" comes to mind, as in hardening a computer system. See https://en.wikipedia.org/wiki/Hardening_(computing)

Robustification (n.)-- the process by which, or the act of, making a procedure or algorithm (esp. in engineering, software or statistics) less susceptible to uncertainty.

See also robustify (v.)

"Enhence Robustness" might be what you want. I saw it in the title of a nature article("Enhancing robustness of interdependent network under recovery based on a two-layer-protection strategy").

Stabilize: to make (more) stable. He put a wedge of paper under the table to stabilize it.

I used this today when referring to a computer program. I also needed a noun equivalent and considered both stabilization and resilience.