Grinding

Definitions

Pushing steadily through repetitive or difficult work over time, often with a sense of endurance rather than inspiration. In engineering slang, grinding can be admirable discipline or a warning sign that the system is consuming too much human effort.
In plain English: Persisting through hard or repetitive technical work over time.
Example: "They were still grinding through flaky test cleanup weeks after the feature had launched, because reliability debt does not pay itself off."