Underlined word

Whenever I type one particular word in a DT note it gets underlined. When I click on the word it opens one specific document (that actually has nothing to do with the word :grinning:

Clearly I have done something to connect this word to this document. What did I do (and how do I undo it?).

Thanks.

You configured WikiLinks for Names and Aliases

I am still using v2

Similar options are available in version 2, see Preferences > Editing.