-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.

Words nearby -athon

British Dictionary definitions for -thon

-thon

suffix forming nouns

indicating a large-scale event or operation of a specified kind telethon

Word Origin for -thon

C20: on the pattern of marathon