I look at those two symbols, and in my head I hear "cow". I know there's only a C and a W, but my brain doesn't care. Maybe it's 'cause the W is kinda roundish? Anyways. "Cow".
My former ancient Greek teacher would want me to point out that this is a lowercase Omega (=a long "o" in Greek). So yes, it even sounds kinda like the first part of cow! ;-)