a combining form occurring in adjectives that correspond to nouns ending in -pathy: psychopathic.
Origin of -pathic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
word-forming element from Latin pathicus, from Greek pathikos "suffering, remaining passive," from pathein "to suffer" (see pathos).
Online Etymology Dictionary, © 2010 Douglas Harper