from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A slight or subtle tint.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
subtleor subdued tint
Sorry, no etymologies found.
As for Hermione, her look of happiness had returned, but with an undertint of melancholy, visible perhaps only to Garnett, but to him always hauntingly present.