Méfaire belong to the 3rd group.
Méfaire is conjugated the same way that verbs that end in : -aire
Méfaire is a defective verb. There is no conjugation for that verb. It exists only in infinitive.
Méfaire verb is intransitive.
Conjugation rules 1x6335
Méfaire is a defective verb. There is no conjugation for that verb. It exists only in infinitive.
Here are several examples of defectives verbs: paître.