It's actually both - Shalln't is considered the archaic form, but it was used. You're right that shan't is much more common. But hey - if Stargate uses it (an

It's actually both - Shalln't is considered the archaic form, but it was used. You're right that shan't is much more common. But hey - if Stargate uses it (and they do - S09E04) then I'm willing to count it :)