What would be a good way to coin an English word for "to make hill-shaped", so it conforms to our traditions for drawing upon classical roots?
One possibility is "collify", with "collification" for the noun, from an imaginary Latin word collificare. I don't think "collify" suggests its meaning, though. Does the Latin word collis appear in any English words?
Another possibility is to draw upon tumulus, which echoes in English "tumescence" and "tumor". There is also an English word "tumulus", meaning a burial mound. Hmm, tumuli have exactly the shape I want to suggest. How, in Latin, would one make a verb for "to make tumulus-like"?
The intended context for this word is to describe modification of fitness landscapes in genetic/evolutionary algorithms to make them smoother and thus (mathematically, heuristically) easier to "climb". Fitness landscapes that are very un-hill-shaped are commonly called "rough", so another possible Latin root to draw upon is lēvis.
If no Latin root works, I may have to go with Greek or else the ugly hybrid "hillify".
The paper with the neologism has been published! Thanks to all for the suggestions.
Kovitz, B., Bender, D., & Poffald, M. (2019, July). Acclivation of Virtual Fitness Landscapes. In The 2019 Conference on Artificial Life: A Hybrid of the European Conference on Artificial Life (ECAL) and the International Conference on the Synthesis and Simulation of Living Systems (ALIFE) (pp. 380-387).