find out unprotected commonly used subdirectories with wfuzz

I try to solve a pentesting challenge where I have to find out a directory, which is unprotected from directory listing.

I tried to find it with

wfuzz -c -z file,'wordlist.txt' --hc 404 http://challenge01.root-me.org/realiste/ch3/FUZZ 

But my wordlist is not suiting the task. Usually you are searching for words like

admin images develop dev disabled secret backup bak includes functions bin lib ... 

How do I generate such a list with most commonly used subdirectories?