Video: Why is a daisy called a daisy? Because it comes from the Old English of Day's Eye, when the flower opens up during the day and closest in the evening. Bonfire? Started from bone fire. Month? A moon cycle, moonth. Being alone? It's because it's just all one. Here are some really fun word origins from Arika Okrent. The etymology is staring at us straight in the face, we just don't know it.