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pro·trude

(prō-trd)

v. pro·trud·ed, pro·trud·ing, pro·trudes

v.intr.

To extend or jut out; project. See Synonyms at bulge.

v.tr.

To push or thrust outward: muscles that allow the tongue to be protruded.

[Latin prōtrūdere : prō-, forward; see PRO-¹ + trūdere, to thrust; see treud- in the Appendix of Indo-European roots.]

pro·trudent (-trdnt) adj.

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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