Are you old enough to remember when it was spelled pyjamas?

Language evolves like everything. When I was little, I was taught two spellings of the word in the title question: pajama and pyjama. I looked up the latter and learned (learnt) it is a chiefly British spelling. Would any of our British jellies like to tell us whether that is accurate?

Can you think of any other words whose spelling has changed over the last 40, 50, or 60 (or longer) years?

Let’s keep it to changes in the 20th and 21st centuries. Please, don’t drag Shakespeare into this. ;)