v. ir·ri·gat·ed, ir·ri·gat·ing, ir·ri·gates
1. To supply (land or crops) with water by means of pipes, sprinklers, ditches, or streams.
2. To wash out (a body cavity or wound) with water or a medicated fluid.
To irrigate land or crops.
[Latin irrigāre, irrigāt- : in-, in; see IN-2 + rigāre, to water.]
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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:
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.