diferí
Diferí is a term that appears to be a misspelling or a less common variation of "differ." In English, "differ" is a verb that means to be unlike or dissimilar to something else, or to have a different opinion. For example, two people might differ on a political issue, or two colors might differ in their shade. The verb can also refer to the act of disagreeing. The past tense and past participle of "differ" is "differed."
It is possible that "diferí" is a word in another language, or a neologism. Without further context,