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en·grain

(ĕn-grān)

tr.v. en·grained, en·grain·ing, en·grains

To ingrain.

[Middle English engreinen, to dye with cochineal or kermes, from Old French engrainer : en-, causative pref.; see EN-¹ + graine, grain; see GRAIN.]

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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