Simple Definition of ordain
: to officially make (someone) a minister, priest, rabbi, etc.
: to officially establish or order (something)
Full Definition of ordain
1 : to invest officially (as by the laying on of hands) with ministerial or priestly authority
: to issue an order
Examples of ordain
She is an ordained minister.
The process was ordained by law.
Origin of ordain
Middle English ordeinen, from Anglo-French ordener, ordeiner, from Late Latin ordinare, from Latin, to put in order, appoint, from ordin-, ordo order
First Known Use: 14th century
Seen and Heard
What made you want to look up ordain? Please tell us where you read or heard it (including the quote, if possible).