apo- or ap-
a. Away from; off: aphelion.
b. Separate: apocarpous.
2. Without; not: apogamy.
3. Related to; derived from: apomorphine.
4. Metasomatic: apophyllite.
[Greek, from apo, away from; see apo- 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.