marginalize
verb (used with object)
to place in a position of minor or marginal importance, significance, relevance, or effect.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But the relationship broke down in 2008 when Mr. Rosselli grew convinced that Mr. Stern was marginalizing him.
From New York Times ● Sep. 14, 2010