This article examines the history of inclusion--or more to the point, deliberate exclusion--of vocabulary relating to lesbians and lesbianism in the Oxford English Dictionary (OED), the “reference of record” for the history of word usage in English. When publication after publication repeats the false statement that vocabulary for lesbians didn’t exist before the late 19th century, one of the reasons is that people are using the OED as if it were simply factual, and not part of the long tradition of erasing women’s same-sex sexuality.