Very simple, but yet important question

Question

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?

It's not wrong, it's just bad writing. – Robusto Feb 01 '17 at 18:18 — Robusto, Feb 01 '17 at 18:18

score 3 · Accepted Answer · edited Apr 13 '17 at 12:38

3

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

Very simple, but yet important question

1 Answers1