Which root word means "around"?

The root word "peri" comes from Greek origins meaning "around" or "surrounding." This root is commonly found in various English words, particularly in scientific and medical terminology. For instance, the term "perimeter" refers to the distance around a shape, while "pericardium" refers to the membrane surrounding the heart. This concept of encompassing or surrounding is central to the meaning of "peri."

The other root words provided have different meanings; "philia" refers to love or affection, "photo" means light, and "sarco" pertains to flesh. Understanding these distinctions is important in recognizing how root words come together to form specific concepts in language.