My most common misspelling

Yes, I know I could have this auto-corrected, but in this case I (stubbornly) refuse and hope that one day this goes away. My most common misspelling must be (by far) the word quantitative. It lies in the nature of my work that I use it quite frequently, although that’s no excuse for mistyping it. At least it’s one of these typing errors the so-called spell-checker catches.