I will add to this as I progress.

The Osfolk:

Jord: the ancient Earth Mother goddess.
Perun: one of Jord's three husbands and Thor's father, now dead.
Fjorgynn: one of Jord's three husbands and the Norns' father, now dead.
The Ship Lord (?): one of Jord's three husbands.
Thor: god of weather and farmers, Jord's son.
Frigga: goddess of fate, Jord's daughter.
Sybil: goddess of fate, Jord's daughter.
Saga: goddess of fate, Jord's daughter.
Verdandi: goddess of fate, Jord's daughter.
Urd: goddess of fate, Jord's daughter.
Skuld: goddess of fate, Jord's daughter.
Meilli: Thor's blood brother.
Ull: god of hunting, Sybil and Heimdall's son.

Hlin: protective goddess, one of Frigga's handmaidens.
Gna: protective goddess, one of Frigga's handmaidens.
Fulla: goddess of domestic comforts, one of Frigga's handmaidens.
Sigyn: Thor's housekeeper.
Heimdall: the guardian of Godhome.

Wordhoard:
Where Heathen words survive in English I will use them for nouns and mythical place names.  

The Nine Worlds:
Middle Garth - Earth / the world of Mankind.
Godhome or Osgarth - the world of the gods.
Elfhome - the world of the elves
The Outlands - the world of the giants
Darkelf Home - the underworld land of the dwarves.
Muspellhome - the world of fire to the south.
Misthome - the landof cold and ice.
Vanhome - the land of the Van gods.
Hel - the underworld world of the dead.

Carl - a freeman.
Elf - a word with broad meanings including local nature spirits, god like beings and dwarves.
Elf-sight - the ability to see elves, they are invisable to most humans.
Elf-sign - an indication of the presence of elves, a doorway to Elfhome.
Garth - an enclosure or yard.  One of the Nine Worlds.
Godman - a Heathen priest.
Godwoman - a Haethen priestess.
Land Spirit - spirits of the land appearing in human or animal form.
Norn - a goddess of fate
Os - a god / divine.  Replacing the Norse Asa.
Scry - to look at something to determine the future.
Spae-sight - the ability to see the future
Spell-song - a sung verse use din magic working.
Stead - place.
Thrall - a slave.
Wight - a being, normally used in the context of a local spirit or elf.
Wyrd - Fate.