1. Across; on the other side; beyond: transpolar.
2. Through: transcontinental.
3. Change; transfer: transliterate.
4. Having a pair of identical atoms on opposite sides of two atoms linked by a double bond. Used of a geometric isomer: trans-butene.
[From Latin trāns-, from trāns, across, beyond, through; see terə-2 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.