Well, ammelah et al - you asked for it! Here's one that will send you scurrying for your on-line dictionaries and search engines....

Who can be first to reply with a CORRECT (sorry Jazz, but don't let that stop you!) etymology AND definition/description for the following family of words:

rogaine (noun and verb)
rogaining (noun and verb)
rogainer (noun)

[Please note - I am NOT referring to the baldness treatment marketed by Pharmacia and Upjohn.]