A glossary of uncommon terms found on this website:
Note on strange characters: 'ð' and 'Þ' represent, respectively, the voiced & unvoiced (or hard & soft) pronunciations of the 'th' dipthong. For more on the pronounciation of Old Norse, see this page on Sacred-Texts.com: http://www.sacred-texts.com/neu/poe/poe38.htm
Aesir (AY-seer or EYE-seer) - literally, 'the gods'; specifically, this is the Old Norse name for the Germanic gods (e.g.: Odin, Thor, Frigg, Freya, Freyr, etc.)
Asatru (OSS-uh-true or OW-suh-true) - term coined by Icelandic scholars wanting a name for the religion of their pre-Christian ancestors; literally, 'true to the Aesir' (which some object to as it seems to slight the Vanir)
Heathen - general term used to refer to someone who worships the Germanic gods and/or shares the religious beliefs of the pre-Christian Germans; it is viewed as 'simpler' (for English speakers) than 'Asatru' or 'Vanatru'
Hof (rhymes with "loaf") - farm or farmstead; royal court; temple; now used in the latter sense by modern Heathens / Asatruar
Iðavelli (EE-the-vel'-ly) - the plain where, according to Voluspa, strophe 7, the gods built their hofs and forged wondrous works in the golden age before the coming of the Norns; literal meaning is obscure, but could be 'plain of deeds' or 'renewing plain', depending on how one interprets 'iða' ('velli' is from 'völlr', a field or plain)
Ørlög (OAR-log) - literally, 'primal law' with a suggestion of 'primal layers'; refers to fate, doom, destiny, fortunes, life allotment, etc. but is not as simple as the concept of "predestination" from Calvinist Christian teachings; some compare 'ørlög' with the Hindu concept of 'karma' but it is definitely not the same as the neo-pagan / Wiccan concept of 'karma'
Rede (reed) - literally, 'advice, counsel' with a connotation of 'wise advice'; the Troth chose this word as the name for their Board of Directors, and liking the idea, we decided to honor their decision by 'stealing' the term for our own use ;-)
Þing (thing) - literally, 'assembly, meeting'; equivalent to English 'moot', as in 'meeting'
Vanatru (VON-uh-true) - term coined by modern Heathens / Asatruar who are drawn more to the Vanir than the Aesir and aren't as fond of the term 'Asatru'
Vanir (VON-eer) - another family of Norse gods who were once at war with the Aesir; at the conclusion of hostilities, hostages were exchanged between the two clans and thus Njorð, Freyr, and Freyja of the Vanir were adopted into the Aesir, though they are still refered to with either term