IPA: /ˈpeɪtrənaɪz/
KK: /ˈpeɪtrəˌnaɪz/
To treat someone as if they are less important or knowledgeable than you, often in a condescending way.
She felt that her boss tended to patronise her during meetings.
Past: patronised
Past Participle: patronised
Patronise → It is formed from "patron" (from Latin "patronus", meaning protector or sponsor) and the suffix "-ise" (meaning to make or to act). The word "patronise" means to act as a protector or sponsor, often implying a condescending attitude towards someone.
Think of a 'protector' ('patron') who 'acts' ('-ise') in a way that may seem superior — that's why to patronise can mean to treat someone as less important.