IPA: /ˌæfɛkˈteɪʃən/
KK: /ˌæfɛkˈteɪʃən/
A way of behaving or speaking that is not genuine and is used to make a certain impression on others. It often involves pretending to be something one is not.
Her affectation of sophistication was evident in the way she spoke and dressed.
Affectation → It is formed from "affectare" (meaning to strive for or to pretend) and the suffix "-tion" (indicating the action or process). The word "affectation" refers to the action of pretending or displaying behavior that is not genuine.
Think of someone 'striving for' a certain behavior ('affectare') — that's why affectation means pretending to be something one is not.