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grin

(grĭn)

v. grinned, grin·ning, grins

v.intr.

To smile broadly, often baring the teeth, as in amusement, glee, embarrassment, or other strong emotion.

v.tr.

To express with a grin: I grinned my approval.

1. The act of grinning.

2. The facial expression produced by grinning.

[Middle English grennen, to grimace, from Old English grennian.]

grinner n.

grinning·ly adv.

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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