While shopping for sensors, I came across these tiny wall meters for temperature and humidity powered by a button cell for a couple of bucks each. I've stuck them to the wall in a couple of rooms with double-sided tape. I think COM 🙂 means comfortable, not COM port 🙂.

That reminded me of the time a poster to a forum wrote about the "comfortability" of a pair of shoes. I was bemused by how a noun, comfort, turned into an adjective by suffixing, comfortable, was turned back to an invented noun, "comfortability".