The word for sailing all the way around the earth is Circumnavigate. From the latin Circum - to encircle and Navigate - to sail.
The circum or circumference of a circle is the distance around it
as a prefix, it means "around." For instance, "circumnavigate the world" means to navigate around the world.
The root Circum means "Round"
circumstance,circumference, circumvent,
The prefix for the word "circumvent" is "circum-".
Circum means around. This was one of my stems.
Quod circum it circum venit
An interesting fact about Ferdinand Magellan is that he was Portuguese and he sailed for the Spanish. Weird right? I know. He was the First one to circum navigate the world
The prefix of circumscribe is the circum which means around.
"Circum" is a Latin root and means "around." "Circus" is so called from the rings enclosing the show, (three-ring circus). So, "circumnavigate" means to navigate around, as in circumnavigate the globe. "Circumcise" means to cut around, (from the same root as "incision"). There are 204 words containing the root "circum" in Webster's Second International dictionary.
The prefix Circum means around, as in the circumference is the line bounding around a circle.