IPA: /dɪˈmiːn/
KK: /dɪˈmin/
To lower someone's dignity or social standing; to treat someone in a way that makes them feel less important.
He felt demeaned by the harsh criticism from his peers.
Past: demeaned
Past Participle: demeaned
Demean → It is formed from "de-" (meaning down or away) and "menare" (from Latin, meaning to lead or conduct). The word originally referred to leading oneself down or behaving in a certain manner, hence the meaning of behaving or conducting oneself.
Think of 'leading down' ('de-') in behavior — that's why 'demean' means to conduct oneself in a certain way.