fo·gy or fo·gey (fōgē)
n. pl. fo·giesor fo·geys
A person of stodgy or old-fashioned habits and attitudes.
[Originally 18th-century slang, invalid soldier, perhaps diminutive (with suffix -Y3) of earlier fogram, fogy (of unknown origin) or perhaps from Scots foggie, old soldier (possibly from foggie, mossy, covered from moss or lichen, from fog, moss, lichen, from Middle English fogge, grass left uncut in the field for winter grazing; see FOG2).]
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.