I suspect that De’vID is right. I thought that Okrand may have mentioned it in one of his many posts, articles and explanations. but when I searched all of my notes for the phrase I found nothing. --Voragh From: tlhIngan-Hol On Behalf Of De'vID Sent: Thursday, November 4, 2021 5:14 AM On Tue, 2 Nov 2021 at 04:58, Scott D. Randel wrote: Lately, I have heard people translating {-vaD} as “for the benefit of.” Lately? According to the mailing list archives, it's been used since (at least) 1996: https://www.kli.org/tlhIngan-Hol/1996/May/msg00326.html<https://urldefense.com/v3/__https:/www.kli.org/tlhIngan-Hol/1996/May/msg00326.html__;!!BpyFHLRN4TMTrA!q4aSCAUzBd1CCp3bmTKNxgxyoiFNeUHKn9KJ5gQpWWPwd7LyRES0W6uR873dEig8dsQ$> I suspect, as others have already noted, that it probably just comes from a rephrasing of the definition in TKD itself.