I have seen recently the following in writing:

This is a very simple, but yet an important observation.

I am almost certain that the [modern] use of but yet here is a typo, and the intentions were to use either of the two words (but the author might have hesitated which form to use to the point where s/he simply forgot to remove one of those).

I started searching, and found a few threads, pointing to an interesting Ngram chart.

The simple question is whether or not the sentence above is correct (and why?); but more importantly, I think it might worth sharing the story behind the archaic use of this strange expression. That is why I tagged this question accordingly.

Related: 'Although' paired with 'yet' in a sentence?

  • 1
    It's not wrong, it's just bad writing.
    – Robusto
    Feb 1, 2017 at 18:18

1 Answer 1


I think: ''this is a very simple, yet important observation'' would be correct, or the same sentence with ''but'' instead of yet.

See also: Usage of "yet" and comma

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