Heh, "ko" also denotes "child", and is often the suffix of girls' names in Japan: Mariko (Child of Peace), Keiko, Hanako (Child of Flowers). The boys' names usually end in "o" in this format: Hanao, Tetsuo, etc. Same idea.

I get blocks all the damn time, no worries. The sixth chapter of Darker Magic gave me HELL, as did one of the later chapters in Nine Days Till Christmas (which was BAD, seeing as I was posting one chapter a day...). Don't worry. It'll pass, for sure.