отказываться от(to make someone gradually stop depending on something that they like and have become used to, especially a drug or a bad habit We’re trying to wean ourselves off watching too much television. MED. US and Iranian gas may offer another way out, but until European countries are able to wean themselves off Russian gas, this will remain the case. BBC Alexander Demidov)
отучить(someone/oneself from something: how to wean yourself off nicotine • wean the bears from human food • we can wean him off his excessive drinkingBullfinch)
