Definition of "hereupon" []

• Immediately after this. (adverb)
• At or on this. (adverb)

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.

• "And those who think they know any thing, and grow fain hereupon, are of all men most likely to make no good use of their knowledge; neither themselves nor others are likely to be benefited by it."
• "The strait he seems to be in hereupon, intimated in those words, And what shall I say?"
• "Btw, my 'girl friend' of 55 years (with a fully signed up licence for 52 of 'em) also comments hereupon, so watch your nuts! She can break them with few well crafted epithets from 150 miles - no sweat!"