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sub·ir·ri·gate

(sŭb-îrĭ-gāt′)

tr.v. sub·ir·ri·gat·ed, sub·ir·ri·gat·ing, sub·ir·ri·gates

To irrigate from beneath, as with underground pipes or a water-filled container holding potted plants.

sub′ir·ri·gation n.

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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