seventieth (adj., n.)
"next in order after the sixty-ninth; being one of seventy equal parts into which a whole is regarded as divided;" c. 1300, seventithe, from seventy + -th (1). It replaced earlier forms from Old English (hund)seofontigoþa. In Middle English also sometimes seuentiand, by influence of Old Norse ordinal ending -tugonde. Compare German siebenzigste, Old Norse sjautugti. As a noun, "ordinal number corresponding to seventy."
updated on July 06, 2022
Dictionary entries near seventieth