Pariah
Outside Influence
Yes - named after Morgoth's mace with which he fought Fingolfin.
Encyclopedia of Arda said:Grond - The battering-ram that breached Minas Tiriths Great Gate
Date - Seen at the Battle of the Pelennor Fields in the hours after midnight on 15 March III 3019
The battering ram used to destroy Minas Tirith's Great Gate during the Battle of the Pelennor. It took its name from the ancient weapon of Morgoth: Grond, the Hammer of the Underworld.
Meaning - 'Club' is the ultimate literal meaning of Grond, a name that dates back to the First Age and possibly before. It was originally applied to the great mace of Morgoth, the so-called Hammer of the Underworld, that he used in his defeat of Fingolfin at the gates of Angband. The battering-ram used to break the gates of Minas Tirith in the Third Age took its name from this mace.
Encyclopedia of Arda said:Grond - The Hammer of the Underworld
Dates - Presumably, but not certainly, destroyed in the War of Wrath at the end of the First Age
Called the Hammer of the Underworld, Morgoth's mighty mace that he bore when he slew Fingolfin before the doors of Angband.
Meaning - According to The Etymologies (The History of Middle-earth Volume 5, The Lost Road and Other Writings III The Etymologies), where the word is associated with a root runda meaning 'rough piece of wood'.