woe anglais

The sign on the truck that drove past the intersection included the words "fresh-baked cookies." Fresh-baked? Since when did adverbs (freshly) get replaced by adjectives and a hyphen (fresh-)?

Yahoo! Mail now shows me a column to the right called "Trending now"; I don't remember seeing trend used as a verb but Merriam-Webster confidently provides an entry for it. Coincidentally, there's an article dated today over at The Economist about this trend (no pun intended). It's titled verbing nouns; that's a nice title, but when did verb become a verb?