"going round in a circuit, indirect," 1660s, from Medieval Latin circuitus "full of roundabout ways," from Latin circuitus "a going round" (see circuit (n.)). Related: Circuitously; circuitousness.
the explanation was circuitous and puzzling
a long and circuitous journey by train and boat
circinate
circle
circlet
circle-wise
circuit
circuitous
circuitry
circuity
circular
circularity
circulate