Webster's Revised Unabridged Dictionary · 1913

Disinteress

Disinteress , transitive verb

[French désintéresser to deprive of interest in; pref. dés- (Latin dis-) + intéresser to interest, from Latin interesse to import, concern. See Interest, and compare Disinterest.]

To deprive or rid of interest in, or regard for; to disengage. [Obsolete]