Final answer:
When adding the suffix "otomy" to the term crani, you get the word craniotomy, which refers to a surgical procedure involving cutting into the cranium.
Step-by-step explanation:
When you add the suffix "otomy" to the term "crani", it forms the word "craniotomy".
"Crani" refers to the cranium, which is the bony structure surrounding the brain and facial bones.
"Otomoy" refers to a surgical incision or cutting into a part of the body, in this case, the cranium. So, a craniotomy is a surgical procedure that involves the cutting into the cranium.