evolve - undergo development or evolution; Modern man evolved a long time ago speciate, differentiate, specialise, specialize - evolve so as to lead to a new species or develop in a way most suited to the environment. derive - come from; The present name derives from an older form
The Sixteenth Amendment (Amendment XVI) to the United States Constitution allows the Congress to levy an income tax without apportioning it among the states or basing it on Census results.
Upholding the income tax provisions of the tariff act of October 3, 1913, Chief Justice White observed that the 16th Amendment did not give Congress any new power to lay and collect an income tax; rather, the 16th Amendment permitted Congress to do so without apportionment ...