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lu·pu·lin

(lpyə-lən)

A yellowish-brown substance obtained from glands at the base of the strobili of the hop plant, containing essential oils and formerly used in medicine as a sedative.

[New Latin lupulus, specific epithet of the hop plant (from diminutive of Latin lupus, wild hop plant, from lupus, wolf (the hop plant perhaps being so called because of its biting bitterness or the resemblance of its bracts to teeth) ; see LUPINE²) + -IN.]

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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