A denomination of coinage in ancient Greece equivalent to one third of a stater.
repeated too often; overfamiliar through overuse
"bromidic sermons"
"his remarks were trite and commonplace"
"hackneyed phrases"
"a stock answer"
"repeating threadbare jokes"
"parroting some timeworn axiom"
"the trite metaphor `hard as nails'"
Often in reference to a word or phrase: used so many times that it is commonplace, or no longer interesting or effective; worn out, hackneyed.
The word comes from the Latin tritus, meaning "worn out." It is derived from a verb that describes the action of wearing something away.