Here are some examples of words using these roots:
* Cephalic: Relating to the head
* Cephalalgia: Headache
* Cephalopod: A marine animal with a head and tentacles (e.g., octopus, squid)
* Capital: The head or most important part of something
* Capitation: Payment for medical services based on the number of patients
* Captain: The leader of a group or team
There are other less common roots that also mean "head," such as "crani" (from the Greek word for skull) and "enceph" (from the Greek word for brain). However, "cephal" and "capit" are the most common.