Blend words are words that are formed by combining two or more parts to make a new word.
Blends deal with the action of shortening and then combining various lexemes or morphemes to form a new word. However, the process of defining which words are actual blends and which are not is much more complicated. The problem comes in determining which parts of a new word are "recoverable" (meaning its root can be distinguished).
There are many types of blend. Algeo, a linguist, decided to divide blends into three main groups. The first one is Phonemic Overlap. Phonemic Overlap is when a syllable or a part of a syllable is shared between two words. The next step is clipping. Clipping a word is shortening two words and then combining them (much like back-formation). Lastly Phonemic Overlap AND Clipping is the shortening of two words to a shared syllable and then combining them. However, classification of types of blends is not standard among all linguists.
Most blends are formed by adding the beginning of one word to the end of another word such as the word brunch. 'Br' from breakfast is added to 'unch' from lunch. Other words are fomred by the beginning of two words. Cyborg is combined of 'cyb' from cybernetic and 'org' from organism. 
|simultaneous + broadcast||simulcast|
|smoke + fog||smog|
|spoon + f'ork||spork|
|clap + clash||clash|
|gleam + shimmer||glimmer|
|camera + recorder||camcorder|
|stay home + vacation||staycation|
Morphological: Folk etymology