[…] nor does he charge Beatus or Heterius (that wild ass) with being a Eutychian, or a follower of Eutyches, or acephalite, or any other term recalling the monophysitism of the fifth century or its descendants.

The Greater Chronicle […] makes it clear that the roots of the Acefali lay in their failure to accept the Three Chapters of Chalcedon […] the Lesser Chronicle, 39, states simply that ‘The heresy of the Acephalites arose’ (my translation).

Eutyches, who taught the opposite: that just there is one person so the natures are one in Christ, by confusing and intermingling the two natures. So too for that whole breed of Eutyches, the Monophysites, Monothelites, and Acephalites.

Acephalite

Meaning

Noun