Dictionary.net

• L. Fr. Effect; practice. Mis en urc. put in practice; carried into effect Kelham.

1910 - Black's Law Dictionary (2nd edition)
By Henry Campbell Black

• [=u]r, n. (obs.) practice, operation.--v.t. and v.i. to work, exercise.

1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson