(Latin: both, on both sides; around, about; vague; obscure)

(Greek: around, about, both, on both sides of, both kinds)

(Latin: around, about, surrounding, closed curve, circling, circular on all sides; literally, "in a circle")

(Greek: around, round, circle, circular)

(Greek: around, enclosing, surrounding, about, near, close; often used as a prefix)

(Greek: ball, round, around; globe, global; body of globular form; by extension, circular zone, circular area)