Oh my word.

Do you know what a clyster is?
It is pronounced kliss-ter.

It is one of the words on a drill list for the brain training I did today.
It has the code (meaning letter) 'y' that makes the 'i' sound (like in kiss).

But a clyster is not a kiss.
And I didn't know what it was.
So I thought I would look it up
So I could tell my young trainee what she is saying,
Especially now that we are at the important stage of using real words instead on nonsense words.

Would you like to know what a clyster is?
 (If you are squeamish, you might want to close your eyes now.)

clys·ter   /ˈklɪstər/ [klis-ter]
–noun Medicine/Medical .

an enema.
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Origin:
1350–1400; ME < L < Gk klystēr, equiv. to *klyd- (base of klýzein to rinse out; cf. cataclysm) + -tēr agent n. suffix

I think I will let this explaination slide.
Pun intended -- (but you have to know that I wrote slide before I realized it was a pun & then it hit me & then I decided to say "pun intended.")