# A head, a heart and a tail

A head, a heart and a tail
You ought to find me, so don't fail

After my tail, send my head
From some bullets, I fled?
To make things new, now use me
And so to do, then affix me

Take my heart and duplicate
Before my head, place it straight
Congrats, I was not very tall
But now, I'm nothing at all

Great, now my tail is my head. Horror!
Fortunately, you let the rest in order
It is quite a long time, you see
I'll understand if you don't wait for me.

Who am I?

• You are a three-letter word. Commented Dec 31, 2016 at 15:23
• @randal'thor That is a start! Commented Dec 31, 2016 at 16:46
• 'Fortunately you let the rest in order' should let be left? Commented Dec 31, 2016 at 17:43
• @BeastlyGerbil Let is valid as well Commented Dec 31, 2016 at 17:55

Are you:

'one'

After my tail, send my head
From some bullets, I fled?
To make things new, now use me
And so to do, then affix me

one -> Neo
Neo is a prefix meaning new or recent.

Take my heart and duplicate
Before my head, place it straight
Congrats, I was not very tall
But now, I'm nothing at all

one -> none

Great, now my tail is my head. Horror!
Fortunately, you let the rest in order
It is quite a long time, you see

one -> eon
An eon is an extremely long period of time.

• Hey, this is it! Explain the lines 5/6 and you're good to have the tick :-) Commented Dec 31, 2016 at 17:56
• Hmm, I honestly can't get 5/6 right now. I'll keep at it. Commented Jan 2, 2017 at 2:26
• For 5/6: it is a prefix to denote something new. Commented Jan 2, 2017 at 6:25
• Yes, this is what @Ankoganit says! Commented Jan 2, 2017 at 7:36
• Ah, clever! I was still thinking of 'one' instead of 'neo' for those lines. Thanks @Ankoganit! Commented Jan 3, 2017 at 4:15