sectionalize means to divide into sections. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From sectional + -ize.
verb
- To divide into sections.“1886-90, John G. Nicolay and John Hay, Abraham Lincoln: A History
On the whole, the principal results of the struggle were, to sectionalize parties more completely, ripen Southern sentiment towards secession, and combine wavering voters in the free-States in support of Republican doctrines.”