Main Entry: ser·mon

Pronunciation: \ˈsər-mən\

Function: noun

Etymology: Middle English, from Anglo-French sermun, from Medieval Latin sermon-, sermo, from Latin, speech, conversation, from serere to link together — more at series

Date: 13th century

1 : a religious discourse delivered in public usually by a clergyman as a part of a worship service
2 : a speech on conduct or duty

— ser·mon·ic \ˌsər-ˈmä-nik\ adjective