How should "undoes" be pronounced in the following sentence?

The git revert command undoes a committed snapshot.

Should it be pronounced as "un + does" (/ʌn'dʌz/) or as "undo + es" (ʌn'duːz)? I think the latter one sounds fine here. But if pronouncing as /ʌnˈduːz/ is fine, why is "does" not pronounced /duːz/?

  • Who says it should be ʌn'duːz? Never heard that. Commented Nov 15, 2016 at 9:16
  • @ThomasWeller That was just my guess. Turns out I was wrong!
    – B Faley
    Commented Nov 15, 2016 at 9:18
  • 1
    do -> does, undo -> undoes. Adding the "un" prefix does not significantly change the pronunciation.
    – Hot Licks
    Commented Nov 15, 2016 at 13:35

1 Answer 1


It is definitely /ʌn'dʌz/. If you look at etymology, you see the archaic words for 'does' used to be 'doth' which is pronounced as /dʌθ/ and 'dost' /dʌst/ and such.

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