The Collaborative International Dictionary of English v.0.48:

Deity \De"i*ty\ (d[=e]"[i^]*t[y^]), n.; pl. Deities
   (d[=e]"[i^]*t[i^]z). [OE. deite, F. d['e]it['e], fr. L.
   deitas, fr. deus a god; akin to divus divine, Jupiter, gen.
   Jovis, Jupiter, dies day, Gr. di^os divine, Zey`s, gen.
   Dio`s, Zeus, Skr. d[=e]va divine, as a noun, god, daiva
   divine, dy[=o] sky, day, hence, the sky personified as a god,
   and to the first syllable of E. Tuesday, Gael. & Ir. dia God,
   W. duw. Cf. Divine, Journey, Journal, Tuesday.]
   1. The collection of attributes which make up the nature of a
      god; divinity; godhead; as, the deity of the Supreme Being
      is seen in his works.
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            They declared with emphasis the perfect deity and
            the perfect manhood of Christ.        --Milman.
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   2. A god or goddess; a heathen god.
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            To worship calves, the deities
            Of Egypt.                             --Milton.
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   The Deity, God, the Supreme Being.
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            This great poet and philosopher [Simonides], the
            more he contemplated the nature of the Deity, found
            that he waded but the more out of his depth.
                                                  --Addison.
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