Ixnay

Disney didn't just kill off a whole bunch of new characters; they ixnayed the possibility of doing lucrative Rogue One-centric sequels.

Tim Grierson, Why 'Rogue One' Is a Model for How to Make a Great Prequel,
Rolling Stone, 19 DEC 2016

This is the first time I come across the word, apparently pig Latin for nix:

EXCLAMATION (ixnay on/to)
US, informal
Used in rejecting something specified:
‘ixnay to corporate control!’

VERB [WITH OBJECT]
US, informal
Cancel or stop:
‘the group has ixnayed the rest of its North American tour’

Oxford Dictionaries