I'm all for proper pronunciation but have always found when wallet is in hand, SAs quickly know what "Tear duh Her-mies" or "Boys do Porch-u-gal" means.
I just say Knize.
I always thought it was like n + eyes but a German patient just happened to mention to me yesterday that there are no silent letters in German so the above comments sound about right.
I imagine we'll have someone more knowledgeable in these languages chime in at some point.