Iarwain Ben-adar

The name by which Tom Bombadil was known to the Elves. It meant oldest and fatherless.

Ilmarien

The mountain in Valinor where Manwë's throne is.

Imlad Morgul

The valley between the Ephel Dúath and Ithilien. Also called Morgul Vale and the Valley of Living Death.

Imladris

The Sindarin name for Rivendell. It was residence of Elrond and the other Noldor in Middle-earth during the Third Age.

Imloth Melui

A place mentioned by Ioreth, where roses grew and where she lived as a girl.

Imrahil

The leader of Belfalas. Called Prince of Dol Amroth. Son of Adrahil. He brought a company of knights and 700 men-at-arms to Minas Tirith to aid in the battle. He came to the aid of the Rohirrim bearing Théoden and Éowyn on biers, told them Éowyn was not dead, and sent someone to the City to help the bearers before riding back off into battle. Aragorn put him in command of the City until Faramir awakened and was well. He took 3,500 men to the Morannon, one-half of the total number of men who were found ready to fight once more. He was one of those who met the Mouth of Sauron outside the Gate. At the Morannon, he stood on the hill with Éomer, and defended the front of the hill with his men. After the company left Edoras for Rivendell, he stayed behind with Faramir, Éomer and Éowyn.

Incánus

The name by which Gandalf went in the South. It was probably used of old in Gondor, though he was known as Mithrandir there by the time of the War of the Ring.

Ingold

A guard of Minas Tirith defending the walls which were being patched, who laughed at Gandalf's statement that Peregrin was "a very valiant man". He led the group of men who defended the Great West Road near the northern end of the City, which was the last group of men to retreat back into the City after the Field was taken before the Rohirrim arrived. He gave the tidings that no word was heard from them, and that the Great West Road was taken by the enemy so that they could not come.

Inland Sea

Another name for the Sea of Nûrnen.

Ioreth

A Healer, she was the oldest woman who worked in the house in which Faramir had been laid. It was she who quoted the old lore: "The hands of the king are the hands of a healer." Gandalf, standing by, heard these words, and assured her that men would long remember them, telling her there may indeed have been a king returned to Gondor. She informed Aragorn that the healers kept no athelas, or kingsfoil as they called it, because they knew of no healing powers which it had. She, however, was sent to find some by Gandalf as quickly as possible. She had lived in Imloth Melui as a child, and the athelas reminded her of the scent of the roses growing there. She was one of the first to hear that the King had returned to Gondor, and soon spread the message throughout the City.

Iorlas

The uncle of Bergil.

Irensaga

A mountain near the Firienfeld, it was saw-tooth-shaped. It and the Snowbourne bordered the Dwimorberg.

Iron Crown

The crown of Morgoth, with the three Silmarili in it.

Isen

The river flowing from Isengard west to the Great Sea. To the river's north is Enedwaith, to the south is Drúwaith Iaur. The River Adorn flows into the Isen.

Fords of Isen

Fords over the Isen, 40 leagues from Edoras. The hosts of Isengard defeated the Rohirrim there and pushed them into Helm's Deep where the next clash occurred, with the Rohirrim being victorious.

Isengard

Also called Wizard's Vale. It was the realm of Saruman in the Third Age. It was destroyed by the Ents, and rebuilt by them into a garden.

Isenmouthe

The gate from Udûn leading into the Plateau of Gorgoroth.

Isildur

The elder son of Elendil, he escaped the Drowning of Númenor with his father and brother Anárion. He fought alongside his father and Gil-galad in the Great Alliance, and cut the Ring from Sauron's hand after he was thrown down. He set his brother's son Meneldil as ruler of Gondor, and ruled Arnor himself. He was slain at the Gladden Fields, where the Ring was lost.

Isildur's Bane

The One Ring.

Ithildin

Starmoon. The substance which only mirrors starlight and moonlight. The markings on the Door of Moria were wrought in this. It is akin to mithril.

Ithilien

The land east of the Anduin, and west of the Ephel Dúath. After Sauron took Osgiliath, the land was abandoned. Faramir had a refuge in Henneth Annûn as an outpost. It was divided into North and South Ithilien by the road from Barad-dûr to Erech.

Ithilstone

The Palantir of Minas Ithil.

The Ivy Bush

A small inn on the Bywater road where Ham Gamgee often sat and told tales.