I just made up that word because I don’t know what else to call it. What I mean is that I’m contemplating one or more series of related posts, and though each post will have its own title, I also want to place a series title above the post title in a smaller font size. I.e. the opposite of a subtitle–hence “supertitle.” For example:
The World of Cheese, Part 56 <- smaller Fabulous Feta!
I am currently using the Pilcrow theme, though I don’t consider that set in stone.