Linguists call them real-word errors. They're very common in writing and spell checkers do nothing to protect against them. I work on a free browser extension

Linguists call them real-word errors. They're very common in writing and spell checkers do nothing to protect against them. I work on a free browser extension called After the Deadline. It picks a lot of this stuff up. It didn't pick up this particular example, next time I deploy an update to our service it will. You may want to check it out, it works here on HN too: http://www.afterthedeadline.com http://www.afterthedeadline.com (as a note, I tend to make the same types of errors)