intr.v. ag·gressed, ag·gress·ing, ag·gress·es
To initiate an attack, war, quarrel, or fight.
[French agresser, from Latin aggredī, aggress-, to attack : ad-, ad- + gradī, to go; see ghredh- in the Appendix of Indo-European roots.]
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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.