Nope. That's a modern pronunciation, not the Old Norse way. (Destiny)
In English, we borrow it from Old Norse, not modern Scandinavian languages. So while that way is not necessarily incorrect, it is definitely not the most correct way to do it.
When a proper name or word is borrowed outright, until it becomes part of English's lexicon, most lexicographers suggest that the most correct way to use it is as a foreign word, that is, with the pronunciation of the language from which it was borrowed, not an alternate pronunciation.
Personally, I'd prefer we just tag along with what the modern Nordics say. There is enough pronunciation divergence already.
Complete thread:
- How to pronounce Gjallarhorn: a long guide -
Funkmon,
2015-04-26, 10:18
- How to pronounce Gjallarhorn: a long guide - ProbablyLast, 2015-04-26, 12:10
- How to pronounce Gjallarhorn: a long guide - Vortech, 2015-04-26, 14:06
- Gee Horn -
Cody Miller,
2015-04-26, 14:45
- *Jeez Horn -
RaichuKFM,
2015-04-26, 14:49
- Jizz Horn* -
Funkmon,
2015-04-26, 15:10
- Hey! Keep it rated PG-Horn - RaichuKFM, 2015-04-26, 15:13
- Jizz Horn* -
Funkmon,
2015-04-26, 15:10
- *Jeez Horn -
RaichuKFM,
2015-04-26, 14:49
- TL;DR? - Click Me. -
INSANEdrive,
2015-04-26, 15:38
- Nope. That's a modern pronunciation, not the Old Norse way. -
Funkmon,
2015-04-26, 15:48
- The internet never lies. I saw it on the internet.*NM* -
INSANEdrive,
2015-04-26, 16:29
- The internet never lies. I saw it on the internet.*M* - Ragashingo, 2015-04-26, 16:48
- Nope. That's a modern pronunciation, not the Old Norse way. -
RC,
2015-04-27, 20:25
- Nope. That's a modern pronunciation, not the Old Norse way. - Funkmon, 2015-04-27, 21:07
- The internet never lies. I saw it on the internet.*NM* -
INSANEdrive,
2015-04-26, 16:29
- Nope. That's a modern pronunciation, not the Old Norse way. -
Funkmon,
2015-04-26, 15:48
- How to pronounce Gjallarhorn: a long guide - Morpheus, 2015-04-27, 01:54