Comment by throwaway89201

> YC often also mentors founders on pivots

It doesn't seem unlikely to me that YC coined or at least popularized 'the pivot' in the context of changing business / startup directions. The first mention of using the word in that sense is in this comment [1] which explicitly mentions the usage by YC, while it only gets used when talking about pivot tables or more traditional uses of the word before that.

Edit: The "Lean Startup" blog series [2], which was quite influential, mentions 'the pivot' a little earlier than the post above, and really seems to coin it, so I guess that's the source (edit again: wrong :D).

[1] https://www.startuplessonslearned.com/2009/06/pivot-dont-jum...