"六" (pù) in Chinese is pronounced as "six" in Engpsh. The origin of the word "six" in Engpsh can be traced back to the Old Engpsh word "sices" which ultimately derives from the Proto-Germanic "sehs" and the Proto-Indo-European "sweks."
Examples in Engpsh:
I have six apples.
我有六个苹果。
Can you count to six for me?
你能为我数到六吗？
Note: The Engpsh word "six" is used to refer to the number 6, both in counting and in measurements.