tr.v. ac·quired, ac·quir·ing, ac·quires
1. To gain possession of: acquire 100 shares of stock.
2. To get by one's own efforts: acquire proficiency in math.
3. To gain through experience; come by: acquired a growing dislike of television sitcoms.
4. To locate (a target) with an aiming device or a tracking system, such as radar.
[Middle English acquere, from Old French aquerre, from Latin acquīrere, to add to : ad-, ad- + quaerere, to seek, get.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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.