Proslavery
Pronunciation : Pro*slav"er*y
Part of Speech : a.
Etymology : [Pref. pro- + slavery.]
Definition : Defn: Favoring slavery. -- n.
Defn: Advocacy of slavery.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder