Thanks. That's a great tip. I've always yanked the word that I wanted and then used Ctrl-R" to paste it on Vim's command line. This is much better.

I'm now off to read "cmdline.txt" (:help Command-line).

BTW, I just accidentally closed my browser tab (latest version of Firefox) by hitting Ctrl-W when I wanted to delete the previous word in this textbox. That used to drive me mad but when Firefox restored the tab, it also restored the text I'd typed. :)