| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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Appendix I
Indo-European Roots |
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| ENTRY: | ost- |
| DEFINITION: | Bone. Oldest form * 2ost-, with e-grade *2est- colored to *2ast-. 1. os2, osseous, ossicle, ossuary; ossifrage, ossify, from Latin os (stem oss-), bone. 2. osteo-; endosteum, exostosis, periosteum, synostosis, teleost, from Greek osteon, bone. 3. Suffixed form *ost-r-. a. ostracize, ostracod, ostracon; ostracoderm, periostracum, from Greek ostrakon, shell, potsherd; b. e-grade form *est-, becoming *ast-. oyster, from Greek ostreon, oyster; c. astragal, astragalus, from Greek astragalos, vertebra, ball of the ankle joint, knucklebone, Ionic molding. (Pokorny ost(h)- 783.) |
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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