Simplex words are words that simply cannot be broken down any further. They are words that have a single morpheme with the affixes that cannot be broken down any further. Complex words are words that can be broken down into various parts. They are words that have two or more morphemes with affixes that are able to be broken down into smaller parts. Looking at the words forbid, forget, forgive, forgo, and forswear I can conclude that they are all complex words. Each one of these words begins with the prefix for and ends in a root word which is attached. There is no evidence that these words are simplex because each word can be broken up into two separate words. For instance, forbid can be broken down to two standalone words: for and bid. Now, say you wanted to further break down the constituents of these complex words – you cannot. The constituents of these complex words happen to be simplex words themselves. Take the word forget for example. Forget is a complex word that breaks down into for and get. The constituents for and get can no longer be broken down because they are simplex words and only contain one morpheme rather than multiple.

