Origin of effective
Examples from the Web for effectiveness
Ever since it was created in 1965, politicians and researchers have studied and debated its effectiveness.
The culture of promotion through seniority kills creativity and effectiveness.
The trouble comes from overconfidence in their effectiveness.Kids Eat the Darndest Things: Laundry Pods, Teething Necklaces, and More Of The Weirdest Stuff Sending Kids to the E.R.|Russell Saunders|November 14, 2014|DAILY BEAST
William Lloyd Garrison was probably the most prominent leader who relied on the effectiveness of hellfire.
The effectiveness of these pamphlets, and the awareness of its writers are apparent in one Lum digs up called “To Mothers.”
His powers depend for their effectiveness on their deliberative and strenuous exertions.Mediaeval Socialism|Bede Jarrett
We have pressing need so to organize our system of administering criminal justice as to establish full vigor and effectiveness.State of the Union Addresses of Herbert Hoover|Herbert Hoover
Gerard's chivalry momentarily lapsed and he struck back with all the effectiveness of superior experience.From the Car Behind|Eleanor M. Ingram
Each day's training added something to the spread and effectiveness of the two machines.The $30,000 Bequest and Other Stories|Mark Twain
This test of effectiveness is a good one to apply to explanations, definitions, and questions.Special Method in the Reading of Complete English Classics|Charles McMurry
British Dictionary definitions for effectiveness
Word Origin and History for effectiveness (1 of 2)
late 14c., from French effectif, from Latin effectivus "productive, effective," from effect-, stem of efficere (see effect (n.)). Effectively in the sense of "actually" is attested by 1650s. Related: Effectivity.