a person or business that employs one or more people, especially for wages or salary: a fair employer.
a person or thing that makes use of or occupies someone or something: an inadequate employer of one's time.
Origin of employer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a person, business, firm, etc, that employs workers
a person who employs; user
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1590s, agent noun from employ.
Online Etymology Dictionary, © 2010 Douglas Harper