What would be season as in "I season the meat with spices?"
Blaistigh, Leasaigh, Cuir dea-bhlas ar -
e.g. Blaistím an fheoil le spiosra.
I hear "shay-thoor!"
So do I!
It must have been corrected or your audio may not be accurate. I distinctly hear shay-soor ['ʃei sur].