If you're looking for a word with a similar meaning, you might be thinking of:
* Prevaricate: This means to speak or act in an evasive way, to lie or deceive.
* Procrastinate: This means to delay or postpone something, especially out of laziness or a lack of motivation.
If you could provide more context about where you encountered the word "previcate," I might be able to help you figure out what it was supposed to mean.