[challenge] I actually think instances of verbed nouns-not-usable-as-adjectives are even rarer than instances of verbed adjectives-not-usable-as-nouns. However, I did find an example of a verbing of a non-adjectival noun: You can tree a cat. BTW Calvin's only 12 years younger than I am. He'd be 26 sometime this year. Yeesh!
[SM] I live and learn - I'd never seen "tree" as a verb before, other than in the sense that "the copse was heavily treed", but have found now found it in the dictionary. I may have to try and get this sense into normal conversation tomorrow
(Phil) I hope it doesn't replace "woooded". I agree "ornate" as a verb is monstrous when "ornament" already exists as a verb. (SM) How do you tree a cat? Stick a twig up its bum? You'll be lucky. I can see how you can de-cat a tree, though, even if it might need the Fire Brigade.