I understand that the use of different terms for the same item (e.g., "car park" vs. "parking lot") has already been discussed, but I'm interested to know why we spell the same words differently in the UK.
Obvious examples include:
- favourite and favorite
- cancelled and canceled
- dialogue and dialog
- honouring and honoring
- behaviour and behavior
My guess would be that this has something to do with British spellings preserving their Latin roots more strongly than the American equivalents, but I don't know. I'd also like to know why present and past tense variations are derived in different ways too, as in the derivatives of "cancel" above.