a combining form meaning “divination,” of the kind specified by the initial element:
necromancy.
Origin
Middle English-manci(e), -mancy(e) < Old French-mancie < Latin-mantīa < Greekmanteía divination. See mantic, -cy
British Dictionary definitions for -mancy
-mancy
combining form
1.
indicating divination of a particular kind: chiromancy
Word Origin
from Old French -mancie, from Latin -mantia, from Greek manteia soothsaying
Word Origin and History for -mancy
word-forming element meaning "divination by means of," from Old French -mancie, from Late Latin -mantia, from Greek manteia "oracle, divination," from mantis "seer, prophet, soothsayer," related to mania "madness, frenzy" (see mania).