It would have been difficult for “vim and vigor” to have been a hit much earlier than the latter half of the 1800s, because the word “vim” itself didn’t appear until 1843 (the earliest citation found by the folks at the OED). The secret of the success of “vim and vigor” as a cliche is, of course, its alliteration, the repetition of that initial “v.” Judging from what I’ve found poking around in a number of places, “vim and vigor” seems to have become truly popular only in the late 19th century. The Oxford English Dictionary (OED), in fact, doesn’t contain a single print citation for “vim and vigor,” although a Google search, as of today, produces more than 55,000 results. While it’s true that “vim” is today almost always encountered bolted to “vigor” in the cliche “vim and vigor,” that’s apparently a relatively recent development. Back in the early 18th century, Jonathan Swift, master satirist and author of Gulliver’s Travels, did his best to abolish a long list of words he disliked, including “mob,” “sham,” “banter,” bully” and “bubble.” As usual, the “mob” wasn’t listening. I should warn you, however, that it’s much easier to launch a new usage than to sink an old one, so I wouldn’t waste time ranting against the “vim and vigor” pairing.
So go for it - get out there and use “vim” by itself at every opportunity.
That’s how, after all, we ended up with such creations as “ginormous” and the appending of “2.0” to all sorts of silly things (Web 2.0, Business 2.0, Clumping Cat Litter 2.0, et al.). Anyone can put a word or phrase to a vote simply by using it and convincing other folks to take it for a spin. After all, language is a true democracy, a rare bird these days.
Dear Word Detective: Why does “vim” only exist with “vigor”? Can we change that? - Joe.