Orc-men

A race of ferocious Man-like Orcs that fought in the armies of Isengard at the end of the Third Age. Orc-men, who were apparently Half-orcs bred from Orcs and Men, were so similar to true Men that it was difficult to tell them apart; indeed, when a force of these creatures attacked the Fords of Isen during the famous Battles there, the chronicler of those events was unsure whether the attackers were Men or Orc-men.¹ The Orc-men in that battle, who were clad in mail and armed with axes, are the only ones we're told of directly, but their actions nonetheless had lasting effects. It was one of these that slew Théodred, leaving King Théoden of Rohan without an heir.