- a suffix extracted from marathon, occurring as the final element in compounds which have the general sense “an event, as a sale or contest, drawn out to unusual length, often until a prearranged goal, as the contribution of a certain amount of money, is reached”: walkathon; readathon.
Also -a-thon, -thon.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thon
Maybe its from thon McAlenan fellow that owes me two pound for the heifer.The Drone
"Thon was a brave coup you gave the soger in the street," she said.
I aye said it of ye from thon night when you throttled the dragoon.
And, what's more, thon man'll no sit easy on his horse for a bit.
She's waving her hand to me and her in the very mouth of thon awful cave.
- a Scot word for yon
C19: of uncertain origin
Word Origin and History for thon
Online Etymology Dictionary, © 2010 Douglas Harper