noun, noun, used as a suffix
Often used as a suffix (e.g., 嫁いびり, 新人いびり) to describe persistent, mean-spirited treatment, especially in hierarchical or group settings. The standalone noun is less common.
職場でのいびりに耐えられず、彼は辞めた。
Unable to endure the bullying at work, he quit.
嫁いびりをする姑は昔話だけではない。
Mothers-in-law who bully their daughters-in-law aren't just a thing of the past.
Derived from the verb いびる (to torment, to bully). The noun form いびり nominalizes the action, and its suffix usage developed from describing the act of bullying a particular target.