Wikipedia isn't all it's cract up to be either.
Spelt is a sort of short-straw wheat they grew in the bronze age, but it's also a proper alternative to spelled. As is 'learnt' a form of learned. Being pedantic, there would originally have been an apostrophe, [
spel't, learn't] for the origin is similar to [
ain't = is not it], a shortening of a word or phrase, with the loss of the words
is / it.
And if you understand what is said, it's English, Gor Blimey! [God blind me].