Abort
In the context of operational activities or technology, to abort means to cancel a processing activity in a controlled manner, often to prevent further errors or unwanted outcomes.
Why it matters
The word has a direct and unambiguous link to the termination of a pregnancy. Specifically this can conjure unwarranted and upsetting imagery or may be triggering. The improving gender diversity in technical industries may highlight this as an increasingly unwelcome term, though it can have a personal impact to everyone.
Instead try saying:
User / System initiated cancellation
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