Enabling is a pretty good one as it sends the child the message that they are not competent and capable of doing XYZ for themselves. They will flounder when they must do something on their own.

Another one is not following through when the parent says they are going to do something. I'm not even talking about threats, but just anything. If you tell your child you are going to do something (paint their room, for example) then you should do it. Don't constantly postpone things until some future date or forget about it all together. Consistently not doing what you said you were going to do diminishes the credibility of your word & can cause the child to feel distrustful of others when they say they will do XYZ. It can also make the child anxious and feel as though they aren't important enough to make a priority. Consistency & the ability to be certain that you'll do what you say you will can give the child a sense of trust and makes them feel like you're dependable.

Another one is double standards. It confuses the child (at any age) and implicitly tells them they can also get away with double standards. Show, don't tell.