The story
- Medieval Latin · derived fromoccipitālis
- Middle French · borrowed fromoccipital
- English todayoccipital
Borrowing from Middle French occipital, from Medieval Latin occipitālis, from occiput (“the back of the head, occiput”) + -ālis (“-al”, adjectival suffix), equivalent of occiput + -al. Doublet of occipitalis.
Etymology from Wiktionary, CC BY-SA 4.0.