IPA: /ˈkaʊntənəns/
KK: /ˈkaʊntənəns/
To support or approve of something, especially something that is usually considered wrong or unacceptable.
The teacher will not countenance any form of cheating in her classroom.
Past: countenanced
Past Participle: countenanced
Countenance → It is formed from "con-" (meaning together) and "tenere" (meaning to hold). The word originally referred to the act of holding together one's facial expression or demeanor, thus relating to one's appearance or bearing.
Think of 'holding together' your facial expression — that's why countenance refers to your appearance or demeanor.