@msh210 @TRiG, uh, yeah, $8 words like that are all well and good for Meta, but my inclination for an outward-facing publication is to replace it with "eight-part."
@IsaacMoses I think that people who have a basic grasp of English (near-native level) can figure out that "octapartite" would mean "octo" - eight + "part" - parts.
@Scimonster I think the appropriate standard for clear writing is less "can they figure this out?" and more "does this convey our meaning without undue distraction?" My use of the word on Meta was a sophomoric stunt, but one that I thought my audience would find amusing enough to justify it. We don't know the audience of this publication well enough to make the same determination.