# Four letters does a riddle make

Here's four letters that you can have,

Add another and you'll have a weapon.

With a plural, I'll rise up (you'll see).

Two more and you might have a fallacie (oops).

What am I?

Note: Each of the lines is an expansion of the previous (i.e. in the last line, you should have an eight letter word, not six).

• Is fallacy intentionally misspelled? – paste Jun 7 '16 at 2:53
• Yes. Hence the 'oops'. – Inazuma Jun 7 '16 at 8:58

Are you

take?

Here's four letters that you can have,

I'll take what you give.

Add another and you'll have a weapon.

Add an s for stake, as in the pointy thing for to off vampires and such.

With a plural, I'll rise up (you'll see).

The plural would be stakes, as in raise the stakes.

Two more and you might have a fallacie (oops).

And with two more, we can get mistakes, which, though the clue hints at a singular, would be correct if the clue has two errors, including the misspelling.

• Very well done! – Inazuma Jun 7 '16 at 4:02

My answer assumes I can change the order of all the letters:

Here's four letters that you can have,

HERE

Add another and you'll have a weapon.

HEXER "one who applies a hex"

With a plural, I'll rise up (you'll see).

SHEER "straight up or down without a break"

Two more and you might have a fallacie (oops).

HERESY

• First line is a clue that's about more than just the four letters, but this was a good attempt. Also, you don't need to rearrange any of the letters with the word I'm thinking of. – Inazuma Jun 7 '16 at 1:34