To cause to be set aside, especially to displace as inferior or antiquated. See Synonyms at replace.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "supersede" in a sentence
"Since when does the Greek origin of the word supersede the English meaning?"
"I know Rich doesn't understand the word "supersede" but that doesn't mean anything to me."