Path. Obs. Also 8 essere, -rs. [med.L. essera, essere, ad. Arab. sharā, with the art. ash-sharā: see Avicenna Canon IV. iii. cap. 13 in the orig. and in the Lat. version of 1483. Cf. Fr. essère.] Old term for a cutaneous eruption attacking the face and hands, resembling that caused by the sting of nettles, but the spots not elevated, and usually unattended by fever (Syd. Soc. Lex.); a variety of nettle-rash.
1706. Phillips, Essere.
17211800. Bailey, Essers.
1744. Mitchell, Colours of People, in Phil. Trans., XLIII. 108. Cutaneous Diseases, as the Itch, prickly Heat or Essere.
1782. W. Heberden, Comm., iii. (1806), 14. The attacks of the esseram or nettle-rash.
1811. in Hooper, Med. Dict.
1847. in Craig; and in mod. Dicts.