I'm encountering these two terms, but their uses seem to be different, and there's little documentation out there defining the terms.
Here is an example definition I've found of Wicking:
Wicking is the spontaneous flow of a liquid in a porous substrate, driven by capillary forces.$^1$
Here is an example definition I've found of hemiwicking (notice little difference between the one above):
Hemiwicking refers to the spreading of a liquid on a rough hydrophilic surface driven by capillarity.$^2$
Below is a typical depiction showing Wenzel wetting (a), Cassie-Baxter wetting (B), and hemiwicking(c).$^3$ My assumption would be that Wenzel wetting would actually be an example of wicking?