The Collaborative International Dictionary of English v.0.48:

Circle \Cir"cle\, v. t. [imp. & p. p. Circled; p. pr. & vb. n.
   Circling.] [OE. cerclen, F. cercler, fr. L. circulare to
   make round. See Circle, n., and cf. Circulate.]
   [1913 Webster]
   1. To move around; to revolve around.
      [1913 Webster]

            Other planets circle other suns.      --Pope.
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   2. To encompass, as by a circle; to surround; to inclose; to
      encircle. --Prior. Pope.
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            Their heads are circled with a short turban.
                                                  --Dampier.
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            So he lies, circled with evil.        --Coleridge.
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   To circle in, to confine; to hem in; to keep together; as,
      to circle bodies in. --Sir K. Digby.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "circling":
   alternate, ambient, beating, cincture, circuition, circuitousness,
   circuitry, circularity, circulation, circumambience,
   circumambiency, circumambient, circumambulation, circumcincture,
   circumferential, circumflex, circumflexion, circumfluent,
   circumfluous, circumjacence, circumjacent, circumlocution,
   circummigration, circumnavigation, circumposition, containment,
   cyclic, deviance, deviancy, deviation, deviousness, digression,
   embracement, embracing, encincture, encirclement, encircling,
   enclosing, enclosure, encompassing, encompassment, enfolding,
   enfoldment, enveloping, envelopment, environing, environment,
   epochal, even, every other, excursion, excursus, girding, girdling,
   gyre, gyring, inclusion, indirection, intermittent, involvement,
   isochronal, meandering, measured, metronomic, neighboring, orbit,
   orbiting, oscillatory, periodical, peripheral, pulsing, reciprocal,
   recurrent, recurring, rhythmic, rotary, roundabout, roundaboutness,
   rounding, seasonal, serial, spiral, spiraling, steady, suburban,
   surrounding, turn, turning, undulant, undulatory, wavelike,
   wheeling, wrapping