From the commentary of the masorah, on parshat Balak, on the pasuk {or one similar} of Bemidbar 23:30:
? ????????? ??????, ????????? ????? ????????; ???????? ???? ???????, ?????????????.30 And Balak did as Balaam had said, and offered up a bullock and a ram on every altar.

???????? ???? -- as a mnemonic, beduyei of Yosef; keruy of Balak; keruyei of Bilaam; bezuyei of Mishlei; kevarei of Kohelet; kaluyei of Daniel -- all of them are with kametz, and all the rest are with patach. In ?"? {other places??}, in Mishlei there is a kametz in {Mishlei 11:26}:

?? ?????? ????, ?????????? ??????; ?????????, ??????? ??????????.26 He that withholdeth corn, the people shall curse him; but blessing shall be upon the head of him that selleth it.So it is in all the sefarim, and it is a scribal error. And this is what you need to say: Beruyei of Yosef; peruyei of Balak; keruyei of Balak, etc.

To explain: beruyei is a language of bar {grain}, as it is written by Yosef {Bereshit 41:35}
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