sup·pos·i·ti·tious (sə-pŏz′ĭ-tĭshəs) or sup·po·si·tious (sŭp′ə-zĭshəs)
1. Substituted with fraudulent intent; spurious.
2. Hypothetical; supposed.
[From Latin suppositīcius, from suppositus, past participle of suppōnere, to substitute; see SUPPOSE.]
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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.