con·du·pli·cate (kŏn-dplĭ-kĭt, -dy-)
Folded together lengthwise, as certain leaves or certain petals in a bud.
[Latin conduplicātus, past participle of conduplicāre, to double : com-, com- + duplicāre, to double (from duplex, duplic-, double; see dwo- in the Appendix of Indo-European roots).]
con′du·pli·cation (-kāshən) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.