I think I'm gonna go with "Gall Knutson," because it's just a funny, quirky surname. I don't even know how to pronounce it. Nut-son? Noot-son? Kanut-son? Kanoot-son? {X D Doesn't matter, I like it any which way.

To answer the question of patronymics, they don't strictly follow the rules in the franchise, so yeah, it's -son. To give a couple examples, Snotlout Jorgenson's father is called Spitelout Jorgenson (voiced by David Tennant!), and Astrid is Astrid Hofferson, not -dotter.

As for the dragon, first let me thank you guys for your great suggestions. You all had some really good ideas and helped get my brain working in new and different directions. Plus, I learned about some cool things, like blue jets and red sprites, which led me to something called black-body radiation, which just sounds awesome, doesn't it?

I also dug up some cool new words in my own search for good punbait:

* Brontide: a low rumbling sound, as of distant thunder or minor seismic activity.
* Ingle: a fire in a hearth. Also "inglenook," a fireplace.
* Scarfskin: the outermost layer of skin; the epidermis.

But ultimately, I think the dragon's name is Fellrazer. Yeah, I'm back on the "raze" thing... I didn't mean to cling to that, it just works. I like this because it sounds like something Gall would come up with, and it also sounds like one whole word rather than two randomly stuck together. Plus, it has three layers of meaning, which is more than I ever hoped for:

1. Sounds like "hellraiser"
2. Fell = fierce/dangerous, razer = one who razes ("deadly fire-starter")
3. Fell = the skin or hide of an animal (yes, really; scroll down to fell⁴!), razer = '' ("sets himself on fire")

"Fell" sealed the deal for me. {= )

I'm not totally closing the book on this just yet, though, because I'd hate to commit and change everything only to come up with something cooler today or tomorrow, so if you still have ideas, please share them! I'd love to hear it if anyone thinks they've come up with something even better. {= D

~Neshomeh

• Bonflier (Bonfire, but... yeah, *is bricked.*) Of course, it could easily be assumed to be french.
  
  - Flarewing? Seems a bit generic though... Flareback?
  
  - Blazefang?
  
  - There's that blue colored lightning - they're flash arcs or something, and then there are Blue Jets, ball lightning, and Red Sprites. So... I'm digging deep for puns here, but maybe having something to do with one of those weather things. Sprite sounds kind of not-viking though.
  
  - Bluestrike? Skystrike?
  
  *Resists making a Charmander joke.*

Regarding Gall, I was going to briefly touch upon what zdimensia said regarding the use of 'datter' and 'dotter' for female patronymics in Scandanavian surnames. Then I remembered that the film doesn't actually follow that rule, so never mind that. Here's some random names I made up off the top of my head.

-- Kasserickson
-- Stekvorikstom
-- Kroggsson
-- Bahdfikson (being the offspring of a badfic and all)

Now, as for the dragon.

-- Cobalt/Kobalt (from the potentially dangerous chemical element that is also used to make blue dyes)
-- Woadfire (from the plant used to make blue dyes -- and possibly blue warpaint/tattoos for the Picts, depending on which sources you believe -- and, well, fire)
-- Dynaflight (from dynamite and flight)
-- Ferrocious (from ferrocerium, the material used to make sparks in lighters, and the word 'ferocious')

PC

I'm seeing a lot of spikes in that design, so how about something like Pyrospine? Infereck has also suggested itself (Inferno + wreck), but is a bit too oblique. Ehm... Flamithorn? Ooh, or Wrathfire, that's a cool name.

Of course, you wanted a pun... well, there's always Firethorn. Or Catastrophire (possibly with an F)?

One question: are you planning on having the name-change be an in-universe thing? We have enough precedent for that - Morgan got a heap of memories dumped on her after the Time War was invented (and at various points since), and I believe Printworthy suffered a similar shift when his identity was assigned to a canon character. Of course, you could just have them change their names, too, I suppose.

hS

Thinking along the lines of Daggerflight, Moonscare, or if your a fan of cutesy names, Booboo.

Yeah, all I got right now is Sparksnap or Blazewing. Maybe Sharpblazer? Sparktooth? Crunchflame? BurnCrackle?

Gah, this is harder than I thought. I wish I remember the names of my old dragons. They were vague rippoffs of Ivory Lyre and Pit Dragons.

One note, would she have a "son of" name, or would her surname be DOTTER? Looking at this list, it seems they didn't use many hard consonants.

AGNARSSON Icelandic (Sounds like anger)
Means "son of Agnar". The given name Agnar means "sharp".

ENGSTRÖM Swedish (Pun name but hard to type.)
Derived from Swedish äng "meadow", ström "stream".

GERHARDSSON Swedish (Pun name)
Means "son of GERHARD".

GUSTAFSSON Swedish (Alright, no more pun names unless they are good.)
Means "son of GUSTAF".

HAAKONSSON Norwegian
Means "son of HÅKON".

KJELLSSON Swedish
Means "son of KJELL".

KNUTSSON Swedish
Means "son of KNUT".

KRISTIANSEN Danish, Norwegian
Means "son of KRISTIAN".

MAGNUSSON Swedish (There's Markus, Martin, Matthais, and Mikael after that.)
Literally means "son of MAGNUS".

NORDSKOV Danish
Means "north woods".

NØRUP Danish
Derived from the name of at least two different Danish villages.
NORUP Danish
Variant of NØRUP.

RAGNVALDSSON Swedish
Means "son of RAGNVALD".

RASK Danish
Means "healthy", "energetic", "speedy" in Danish.

RASMUSSEN Danish, Norwegian
Means "son of RASMUS".

SKJEGGESTAD Norwegian
Means "Skjegge's place" or "the bearded one's place" from the Norwegian skjegge "beard" and stad "town, place".

SKOVGAARD Danish
Means "dweller in a farm near the woods" from the Danish skov "wood" and gård "farm".

TENNFJORD Norwegian
Originally denoted a person from Tennfjord, Norway.

THORIRSSON Icelandic
Means "son of ÞÓRIR".

VICTORSSON Swedish
Swedish form of VICTORSON

VILHJALMSSON Norwegian, Icelandic
Means "son of VILHJÁLMUR".