1. A large stately house.
2. A manor house.
a. A dwelling; an abode.
b. A separate dwelling in a large house or structure.
a. See house.
b. Any one of the 28 divisions of the moon's monthly path.
[Middle English mansioun, a dwelling, from Old French mansion, from Latin mānsiō, mānsiōn-, from mānsus, past participle of manēre, to dwell, remain; see men-3 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.