"Disparagement" Natural Recordings by Native Speakers
Disparagement is the act of speaking ill of or criticizing someone or something in a hurtful or unfair way, often with the intention of lowering their reputation or status. It can include making negative comments, spreading false rumors, or engaging in other forms of verbal or written abuse. Disparagement can cause emotional harm, damage relationships, and undermine trust and confidence.
I apologize, but "disoxygenating" is not a real word in the English language. It appears to be a made-up or non-standard term.