The Prose Edda 2.56

"Which are the simple terms for Earth? She is called Earth, as Thjódólfr sang:

The hardy Point-Rain's Urger Oft caused the harsh sword-shower, Ere under him the broad Earth With battle he subjected.

Field, as Óttarr sang:

The Prince guards the Field: Few kings are so mighty; Óleifr fattens the eagle,— Foremost is the Swedes' King.

Ground, as Hallvardr sang:

The broad Ground, 'neath the venom-cold Adder Bound, lies subject to the Warrior Of the Island-Fetter's heaped gold; The Hone-Land's Lord the hoard dispenseth.

Haudr, as Einarr sang:

Brave heroes are defending The hard Haudr of famous princes With the sword; oft splits the helmet Before the furious edge-storm.

Land, as Thórdr Kolbeinsson sang:

The Land, after the battle, Was laid low from Veiga northward To Agdir south, or farther: Hard is song in conflict.

Fief, as Óttarr sang:

Thou, fierce War-Staff, maintainedst The Fief despite two Monarchs With heroes' kin. where the ravens Starved not; keen-hearted art thou.

Hlödyn, as Völu-Steinn sang:

I remember how murky earth yawned With graven mouth for the Sender Of the Gold-Words of the Giant Of the hard bones of Green Hlödyn.

Country, as Úlfr Uggason sang:

But the flashing-eyed stiff Edge-Rope Of the Earth stared past the gunwale At the Rowan-Tree of the Country Of Stone, the Giant-Tester.

Fjörgyn, as is said here:

I was faithful to the free Payer Of the stream-bed of Fjörgyn's Serpent; May honor be closely guarded By the Giver of the Giant's Stream-gold.