overaccentuate
verb
over·ac·cen·tu·ate ˌō-vər-ik-ˈsen(t)-shə-ˌwāt 
-ak-
overaccentuated; overaccentuating
transitive verb
: to accentuate or emphasize (something) too much
overaccentuated their differences while ignoring their similarities
Word History
First Known Use
1870, in the meaning defined above