Context: It's likely[weasel words] that alb ("white") and albus have common origins deriving from the association of the tops of tall mountains or steep hills with snow.

Question: What words are likely to have common origins?
Answer: alb ("white") and albus

Question: Where do Alb and Albus share their origin from?
Answer: the association of the tops of tall mountains or steep hills with snow.

Question: Alb can also mean what? 
Answer: white