liberalize
verb (used with or without object)
to make or become liberal.
Used to express a completed action that took place before another specific past action occurred.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The war had liberalized the most conservative old bunch of relatives a girl was ever inflicted with.
From The Sisters-In-Law by Gertrude Franklin Horn Atherton