English
heresiological
From heresio- + -logical.
Formed from heresio- + -logical
Proto-Indo-European *ser- ‘to take, grasp, plunder’
Proto-Hellenic *həřřéyō
Ancient Greek αἱρέω ‘to take, grasp, seize’
Ancient Greek αἵρεσις ‘taking, receiving’
Latin haeresis ‘heresy’
English heresio-
Today it means
adj Relating to heresiology.
Language periods are conventional ranges, not dates for this word.
Etymograph / heresiological