The story
- Ancient Greek · borrowed fromκρᾱνίον“upper part of the head, skull”
- English todayopisthocranion
From opistho- + Ancient Greek κρᾱνίον (krāníon, “upper part of the head, skull”), compare cranium and -ion (“craniometric landmark”).
Words from the same roots
Ancient Greekκρᾱνίον all →
cranium
Etymology from Wiktionary, CC BY-SA 4.0.