For a while now I have reflected from time to time on the importance of using our own ancient Saxon and Anglo-Saxon names for our Gods. Too often I see non-Scandinavian Germanic people use Norse terms for their deities instead of their own more valid native names. A typical example is the use of the Norse Thor/Thorr/Tor when Thunor/Thunaer/Donar would be more valid. Sometimes this is out of laziness, sometimes due to lack of knowledge.
On occasions I have used the Norse terms but only so that the person I am talking to would more readily understand who these Gods are. I believe the time has now come when we as Saxons should refer to our deities by the correct terms. This article is a starting point for this.
Rudolf Simek in his Dictionary of Northern Mythology has this to say in the opening entry for Thor:
"Thor (ON Thorr, in southern areas >Donar.)"
"Donar. The southern Germanic equivalent of the Germanic god of thunder who is called> Thor in the north, and Thunor in Old English."
"Thunor (OE). The OE of the Germanic name of the god of thunder > Thor/Donar."
"Thunaer. Old Saxon form of the name of the god Thor/Donar."
Phonetically the Old English and the Saxon names for this God are very close and either would be appropriate for us to use. Even Donar would be closer to the name of the God than Thor.
All these terms are related to the Germanic *thunar-`thunder`. The original name for the Proto-Germanic Thunder God would therefore have been *Thunaraz.
However the 9th to the 10th century Old English Dialogue of Solomon and Saturn does refer to Thunor:
"Se thunor hit thryscedh mid thaere fyrenan aecxe."
Translated into Modern English: "Thunor threshes with his fiery axe."
I believe that it is important that we adhere to our native God names, not only because they are native but in most cases they are more ancient than the Old Norse terms. We do honour to our Gods by taking this approach.