What linguistic process is demonstrated by words like 'black__leg' and 'flash__light'?

Explanation

The words 'black__leg' and 'flash__light' are formed by joining two separate words to create a new term, which is known as compounding. Portmanteau involves blending parts of words, derivation refers to adding affixes to form new words, and backformation is the process of creating a new word by removing an affix.