| Answer | Crossword Clue |
|---|---|
| steeled | cause to resemble steel (as in looks or hardness) |
| nitriding | Heat steel in the presence of ammonia or other nitrogenous material so as to increase hardness and corrosion resistance |
| nitrided | Heat steel in the presence of ammonia or other nitrogenous material so as to increase hardness and corrosion resistance |
| steely | resembling or suggesting steel, as in color, strength, or hardness |
| steelier | resembling or suggesting steel (as in hardness, color, strength, or coldness) steely determination steely blue |
