"Malignant tempers ... will discover their natural <i>tincture</i> of mind."
Tincture [from A Dictionary of the English Language]
Text from Samuel Johnson, <u>A Dictionary of the English Language: In Which the Words Are Deduced from Their Originals, and Illustrated in Their Different Significations by Examples from the Best Writers. To Which Are Prefixed, a History of the Language, and an English Grammar</u>. (New York: AMS Press, 1967).