I've made diptychs, and even triptychs, but I wasn't sure what to call this new work made up of four panels. So I looked it up and yep, that's what it's called. Although I'm not sure if mine qualifies, since it's not actually one image broken into four segments. But it is meant to be viewed together as shown. The general term for multi paneled paintings is "polyptych." So there's your word for the day!