The Chinese character on the Wikipedia logo is "袓", not "祖".

The Chinese character "袓" on the Wikipedia logo is often mistakenly thought to be "祖" (as in ancestor). However, "袓" has the "衣" (clothing) radical, not the "示" (indication) radical.

The character "袓" has two pronunciations: 1. ju third tone, meaning beautiful white color; 2. jie first tone (as in "袓厉"), an ancient county name.