Hyphens, En Dashes, Em Dashes

Q. I was not able to find this in CMOS anywhere: how do you hyphenate a word that has both a prefix and a suffix? For example, should “seminationwide” have any hyphens?

A. In Chicago style, it would not have hyphens. I should point out, however, that such a word might invite further editorial scrutiny.

[This answer relies on the 17th edition of CMOS (2017) unless otherwise noted.]