By ‘Round Robin’, I mean a Robin (bird) that looks round because it’s fluffed up all its feathers to increase trapped air to keep itself warm, as opposed to round-robin, a tournament where each contestant competes with every other contestant (rather than a knockout competition, where contestants get eliminated in stages, in, for example, a series of quarter- and semi-finals). And then I wondered if the two robins were somehow related but it turns out they’re not. According to Wikipedia, in round-robin the competition the word robin is a corruption of the French term ruban, which means ribbon, though, if you’re a word nut like me, you might like to check out The Phrase Finder website, which has even more interesting information about the origin of the term.