Definition of matriarchic in US English:

matriarchic

adjective

  • Of or of the nature of a matriarch; characterized by matriarchy; matriarchal.

Origin

1920s; earliest use found in Lawrence Waddell (1854–1938), army medical officer and orientalist. From matriarch + -ic, perhaps after patriarchic.

Pronunciation

matriarchic

/ˌmeɪtrɪˈɑːkɪk/