He read the engravings on the swords they had found in the troll's hoard. He also saw the moon runes on the map.
Gandolf found Glamdring and Orchrist in the troll's cave. He took Glamdring and Thorin took Orchrist.
They are the god damn swords that the party found in the troll cave. Gandalf stabs the goblin king in the back with his.
Bilbo finds Sting the knife that turns blue when orcs are close and Gandalf finds Glamdring the sword he uses in Fellowship, Two Towers, and Return of the King.
Foe Hammer is a sword. Its name in Elvish was Glamdring; the king of Gondolin once wore it and Gandalf got it from the Troll's cave. The goblins called it Beater.
Trolls are much bigger than dwarves and hobbits, at least in Tolkien's world of Middle Earth. They are almost the equivalent of giants. They could pick up the hobbit with one hand.
The named swords (Orcrist, Glamdring and Sting) are found by Thorin and Company in a troll cave. Originally, however, they were from the hidden elven kingdom of Gondolin in Beleriand (which by the time of the hobbit was sunken below the waves).
He read the engravings on the swords they had found in the troll's hoard. He also saw the moon runes on the map.
Gandolf found Glamdring and Orchrist in the troll's cave. He took Glamdring and Thorin took Orchrist.
Foe-Hammer was found in the Troll hoard in chapter 2. Elrond explains it's lineage and name in chapter 3.
They are the god damn swords that the party found in the troll cave. Gandalf stabs the goblin king in the back with his.
means to cause a downfall
because it is a myster
Thorin. Stubborn as well. Smaug had a problem with pride as well, unto his utter ruin!
He died prematurely.
They argued for so long because Gandalf the wizard was secretly saying things while in the shadows and one troll would think it was another troll insulting him, so they kept arguing until dawn.
Downfall in what? A bigger or more organised gang beat them. Which is not too difficult. Weeds do it.