This is an open list, anyone can contribute.

Adjectives using a "V" not present in their noun forms, presumably to more comfortably phonetically elide with the adjectival suffix. I came to Wordie with "muscovite" and "shavian" in mind, and have since found "marlovian" and "thoreauvian", but alas still no common nouns. I have also heard "Monrovian" as an adjective for U.S. President James Monroe, but that word is not present on Wordie. Please contribute to the list or the discussion as much as possible.