Why Fredstuff has become one word

Why? Because it took the same route many words have taken. Weekend for example. Started out as week's end. Then the possessive fell away as the idea expanded to mean more of a general concept rather than a specific week's end. Many phrases go through a hyphenation period on their way to becoming a compound word. Week-end. Finally weekend. Two distinct concepts becoming one. Fred. Stuff. Then Fred's stuff. Then Fred-stuff. Now Fredstuff. The process can happen over a century or in a matter of weeks in fast-paced arenas like computers. Mine took about 15 years.