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.

  • 1
    Doesn't address cancelled and dialogue, but related: english.stackexchange.com/questions/9850/…
    – Daniel
    Commented Sep 28, 2011 at 0:19
  • 1
    Actually, the original Latin spellings were color, honor, etc. I suspect the answer is simply that the two dialects grew up geographically far apart and without all that much intercommunication!
    – Billy
    Commented Sep 28, 2011 at 0:32
  • @Billy: Do you really have to suspect anything when I've just given you a beautiful link? ;)
    – Daniel
    Commented Sep 28, 2011 at 0:37
  • It costs money to ship those extra letters to the New World.
    – Oldcat
    Commented Dec 3, 2014 at 1:32

1 Answer 1


In the late 1700's, English spelling wasn't really well standardized. In the early 1800's, America and Great Britain standardized their spellings separately. American spellings were heavily influenced by Noah Webster's dictionary, first published in 1828. He simplified the spellings of many words, and those simplified spellings became standard American English.

  • 1
    +1. Some references for further reading would be nice. On Noah Webster's work esp., naturally.
    – Kris
    Commented Apr 27, 2012 at 17:08

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