By 1835 the excitement was at its height, and especially along the line of the moral and religious argumentation, where the proslavery men met talk with talk.1902, John Lord, Beacon Lights of History, Volume XII:
When it seemed later that the cause of freedom would eventually triumph the proslavery element undertook to perpetuate slavery through a system of indentured servant labor.1918, Carter G. Woodson, A Century of Negro Migration:
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His proslavery views were shaped not only by money and status but also by his deeply racist views, which he tried to justify through pseudoscience.2012 November 30, Paul Finkelman, “The Real Thomas Jefferson: The Monster of Monticello”, in New York Times:
proslavery
noun
Etymology From pro- + slavery.
1
Support for the institution of slavery.
The old wisdom that southerners rose up in unison in 1831 after a decade of preparation in the tenets of proslavery is patently an erroneous interpretation.1990, Larry E. Tise, Proslavery: A History of the Defense of Slavery in America, 1701-1840, page 308: