Answer:
I am the word that has three syllables and twenty six letters. What am I?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
I may only be given but never bought. Sinners seek me but saints do not. (one word).
I start in little but I end in full you'll find me in half and complete.
I go in hard come out soft. Blow me hard and I’ll make a pop.
What is lighter than what it is made of?