You are right. And you are right again. I knew the different pronuntiation of “c” or “z” as “s”, but I didn’t stop to try to know the reason, I think I see it now. They are pretty similar cases (“c/z” as “s”, “d” as “t”, “v” as “b”)
TIDE
Tiddler
Integrated
Development
Environment
Tiddler
Internet
Design
Enhancement
=> TIDEA. ??
TIDES
Tiddlywiki
Internet
Design
Exploration
System
Transclusionary
Interesting
Design
Expansion
System