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fex·o·fen·a·dine

(fĕk′sə-fĕnə-dēn′)

A nonsedating antihistamine, C₃₂H₃₉NO₄, used in its chloride form to treat allergic rhinitis and allergic skin disorders.

[Alteration of carboxyterfenadine (perhaps influenced by PHENYL) : CARBOXY- + terfenadine, an antihistamine (TER(TIARY) + alteration of PHEN(YL) + alteration of (PIPER)IDINE).]

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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