Why is "whatsoever" a single word?

Question

Why is "whatsoever" a single word?

Answer 1

That's one of the 1,000 mysteries.

Answer 2

good question

i always wonder about nonetheless too.

why is it all just one word?

Answer 3

There are many words like this:

Whatsoever

Nevertheless

Nonetheless

However

Inasmuch (as)

These words are most likely written together to distinguish them from their component words, which mean different things.  Since "whatsoever" is used as a single adjective or pronoun, it is written as a single word.  Sorta like a compound noun, like "bookkeeper" written together instead of "book keeper."

Answer 4

i never knew that... i dont even use that word