If it is not an error by aviation or cavilation, it can mean "vilification"; although it is not used, especially because the verb avilar is already very old. See vile, envilecer .
It is the action or effect of avilar. It means envileing, degrading, deteriorating, dishonoring, devaluing, depreciating, discrediting. Devaluation, depreciation, dishonor, degradation, smear.
AVILATION Action and effect of committing a vile act, AVILAR . It comes from the Latin "ad" cercanía, from the noun "VIL" and from the verbal ending "ar"