-athon

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

Historical Examples of thon

Maybe its from thon McAlenan fellow that owes me two pound for the heifer.
The Drone
Rutherford Mayne
"Thon was a brave coup you gave the soger in the street," she said.
The Northern Iron
George A. Birmingham
I aye said it of ye from thon night when you throttled the dragoon.
The Northern Iron
George A. Birmingham
And, what's more, thon man'll no sit easy on his horse for a bit.
The Northern Iron
George A. Birmingham
She's waving her hand to me and her in the very mouth of thon awful cave.
The Northern Iron
George A. Birmingham

British Dictionary definitions for thon

thon

determiner

a Scot word for yon

Word Origin for thon

C19: of uncertain origin

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

Word Origin and History for thon

-athon

also -thon, word-forming element denoting prolonged activity and usually some measure of endurance, abstracted from marathon. E.g. walkathon (1931), skatathon (1933); talkathon (1948); telethon (1949).