Noun. (Welsh)A homesickness for somewhere you cannot return to, the nostalgia and the grief for the lost places of your past, places that never were.
Everyone is doing a lovely job with this abstract challenge! If you find that you don't have the time to do all of them, don't worry about it! Even if all you do is think about the word and what it feels like to you, it's still time well spent. Thinking in abstract ways is good for your brain and helps you develop conceptual work in your mind, even if you don't lift a finger.
Speaking of not lifting a finger, I found an interesting video clip that features a nifty little robot that uses sand to write on sidewalks in public places.... Sand graffiti? Sgraffiti?
If you'd like to see it in action, Check it out!