"hatred of women," 1650s, from Modern Latin misogynia, from Greek misogynia, abstract noun from misogynēs "woman-hater," from miso- "hatred" (see miso-) + gynē "woman" (from PIE root *gwen- "woman"). Its opposite is philogyny (1620s).
-ism
word-forming element making nouns implying a practice, system, doctrine, etc., from French -isme or directly from Latin -isma, -ismus (source also of Italian, Spanish -ismo, Dutch, German -ismus), from Greek -ismos, noun ending signifying the practice or teaching of a thing, from the stem of verbs in -izein, a verb-forming element denoting the doing of the noun or adjective to which it is attached. For distinction of use, see -ity. The related Greek suffix -isma(t)- affects some forms.