Zugzwang & Zwischenzug

zugzwang is where your opponent has no good moves.
You've been thinking about this answer for 16 years?

so zugzwang is like "every move you make will weaken you!" and zwischenzug is like "you've fallen into my trap!"

so zugzwang is like "every move you make will weaken you!" and zwischenzug is like "you've fallen into my trap!"
Kind of.
Zugzwang isn't just a position where every move is objectively bad. It's a position where you really wish you weren't forced to make a move, because passing your turn (which is obviously illegal) would be ideal.
For example, in this position, the winner is whoever's turn it is not:
"Zwischenzug" is rather difficult to define, but I'm not sure that "falling into a trap" is totally accurate. It's more like getting punched in the gut when you were expecting to be hit in the face, and then getting hit in the face. I think.
What do these two terms mean? Where did they come from (what language)?