According to Ptolemy's (c. 150 CE) account of the motions of planets, planets moved in circular paths ("epicycles") around center points that in turn moved around the center of the earth along a path called a "deferent", or around point near the center of the earth, in a path called an "eccentric". (I think I have this right.)
Is there a general term for these three kinds of paths? "Orbit" doesn't seem correct, since none of the three are orbits in the modern sense.
EDIT: I'd also be interested in knowing of a general term of the centers of these circles.