The term ut supra means “as above.” It’s actually not Dutch at all but Latin. It’s used in records sometimes as a shorthand when the writer doesn’t want to keep repeating the same information. When you see the term, you have to look at the previous entries to see what information it replaces.
This question came up in the Dutch Genealogy Facebook Group, where David P. Slager jr. asked about the meaning of “ut supra” in the following marriage record:
It’s a marriage record for Leendert Jansz Nedervelt and Leentje van de Knaap who had banns published on 28 July. The last line reads “en getrouwt ut supra,” which means “and married as above.” To find their actual marriage date, David has to go back to the previous entries to see what the above date was.