Sabellian

Origin

From Latin Sabellus + -ian, pertaining to the Sabellī, an Italic tribe, from Proto-Italic *saβn- (whence also Samnium, Samnones, Sabus, Sabīnus), perhaps from an uncertain Proto-Indo-European root, sometimes identified with the reflexive pronoun *swé (“self”) for the assumed meaning “one's own” (compare Proto-Germanic *swēbaz for a similar etymology), but this is highly suspect on phonetic grounds.