Dictionary attack

[Tonyr1512]

So I'm trying to attack one of my hashes, I know it's all lower case, a combination of two words between 10 and 11 letters meaning each word is 5 to 6 letters long. Followed by 3 numbers. Doing just a mask attack ?l?l?l?l?l?l?l?l?l?l?d?d?d will take 10 years!  I there a way to use a dictionary of words combine two words and combine two of those words and do a ?d?d?d at the end? What would be the command for that. The only dictionary I have is the rockyou.txt