Gereon

Gereon is a Germanic name, though it comes from the Greek γερων (geron), meaning old man.

Love's bread.

I found this in the writings of a Desert Father:

Book III of the Vitae patrum, xlvi: The abbot Silvanus with Zachary his disciple came to a certain monastery, and before they took their leave, the monks made them eat a little. But after they had gone out, his disciple came on water, and would ... have drunk. Then said Silvanus, "Zachary, today is a fast." He said, "But, Father, did we not eat today?" The old man said, "That was love's bread, my son: but for us, let us keep our own fast."

The heart in the breast of Hlorrithi laughed ...

This is an excerpt only, a modern translation of a very old poem. Scholars still argue about its age. Nevertheless, this translation is entitled "The Lay of Thrym." It's from what we call the "Poetic Eddas," poems from the Norsemen.

Othin.

Odin has many names.

Gabbelen.

Middle Dutch. Gabble, related to gobble, is derived from this root.

The poet.

Homer. This hints that Rian knows Greek. By the way, the work attributed to Homer was relatively unknown in the West until the 15th Century (when scholars took up the study of Greek again.)

Shake-down.

A readily arranged site for sleeping. In today's slang, a place to crash.