I am all asquee over this bit of linguistic news that archaic words are regaining crowd appeal. Why? Because it's a triangulation point helping to confirm my hypothesis that the frame has popped off and English is in one of its phases of rapid evolution, like the Great Vowel Shift. Whenever that happens, there's a big uptick in archaic resurgence because as the language retools itself, people check the attic for things that might be usable to fill gaps they're finding that inspired such a major change in the first place. It's a time when the usual rules are suspended enough to permit drastic revisions of practice. So you see certain words appearing and disappearing from common use, like skipping a stone across a lake, if you track them out over centuries.
*chuckle* Slightly marred by those of us whose farmemory and taste in literature have always led us to use "alas" as an everyday word.