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Huh. I'm from the Boston area, 50yo, avid reader, former English teacher, fairly well-travelled...

• danaris 1y ago
  I've definitely been using phrasing like it ("save off a copy", etc) for at least the past 20-25 years (upstate NY, moderately online, avid reader, parent is an English professor, fairly well-traveled). Conceptually, I think that the "off" serves the purpose of aligning it with something like "split off"—you're essentially forking the history by creating a separate saved copy.
  • Alive-in-2025 1y ago
    Today I learned I am using a less common expression. ;-) I'm just an ordinary engineer.