عد doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 4 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• عَدَّهُ Form 1

  1 عَدَّهُ ذ , (S, A, O, Msb, &c.,) aor. عَدُدَ , (O, Msb,) inf. n. عَدٌّ (S, O, Msb, K) and عِدَّةٌ and تَعْدَادٌ [which last has an intensive signification, and may also be regarded as an inf. n. of the verb next follow…

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• عَدْ

  عَدْ عَدْ ذ A cry by which the mule is chidden; (AZ, O, K;) like عَدَسْ. (AZ, O.)…

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• عُدٌّ

  عُدٌّ ذ and Pustules in the face: (IJ, TA:) or pustules that come forth in the faces of beautiful, or goodly, persons: (O, K:) pl. of the former [and app. of the latter also, which is probably a n. un.,] أَعْدَادٌ. (Marg…

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• عِدٌّ

  عِدٌّ ذ Multitude, muchness, or abundance, (S, O, K,) in a thing. (K.) One says, إِنَّهُمْ لَذَوُو عِدٍّ وَقِبصٍ (in one of my copies of the S and in the O لَذُو, and in the other of my copies of the S and in the O قِبْض…

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