ante meridiem

adjective
an·​te me·​ri·​di·​em | \ ˌan-ti-mə-ˈri-dē-əm How to pronounce ante meridiem (audio) , -dē-ˌem\

Definition of ante meridiem

: being before noon abbreviation AM, a.m., or (British) am

First Known Use of ante meridiem

1563, in the meaning defined above

History and Etymology for ante meridiem

Latin

Keep scrolling for more