English word impossible comes from Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.), Latin possibilis (Possible, that may exist, that may be done.)
| Dictionary entry | Language | Definition |
|---|---|---|
| ingratus | Latin (lat) | Thankless. Ungrateful. Unpleasant, disagreeable. |
| possibilis | Latin (lat) | Possible, that may exist, that may be done. |
| impossibilis | Latin (lat) | Impossible. |
| impossible | Old French (842-ca. 1400) (fro) | |
| impossible | English (en) | (obsolete) an impossibility (colloquial, of a person) Very difficult to deal with.. (math, dated) imaginary. Not possible; not able to be done or happen. |