earnest vs arles

earnest and arles both are nouns.

Word	Noun	Adjective	Verb	Adverb
earnest	Yes	Yes	No	No
arles	Yes	No	No	No

As nouns, arles is a hyponym of earnest; that is, arles is a word with a more specific, narrower meaning than earnest:

earnest: something of value given by one person to another to bind a contract
arles: money given by a buyer to a seller to bind a contract

Other hyponyms of earnest include earnest money.

earnest (noun)	arles (noun)
something of value given by one person to another to bind a contract	money given by a buyer to a seller to bind a contract

earnest (adjective)	arles (adjective)
not distracted by anything unrelated to the goal
characterized by a firm and humorless belief in the validity of your opinions
sincerely earnest