English word vacuum comes from Proto-Indo-European *h₁weh₂-, Proto-Indo-European *ewə-
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₁weh₂- | Proto-Indo-European (ine) | |
| *ewə- | Proto-Indo-European (ine) | to lack; empty |
| *h₁uh₂-ko- | Proto-Indo-European (ine) | |
| *h₁uh₂-ko-wo- | Proto-Indo-European (ine) | |
| *wakāō | Proto-Italic (itc-pro) | |
| *wakowos | Proto-Italic (itc-pro) | |
| vaco | Latin (lat) | I am empty, void. I am free to attend, have time, am not under other obligation. I am idle, at leisure. I am unoccupied, vacant. |
| vacuus | Latin (lat) | [of time] free, unoccupied. Devoid or free of, without. Empty, vacant, unoccupied. |
| vacuum | English (en) | (intransitive) To use a vacuum cleaner.. (transitive) To clean (something) with a vacuum cleaner.. (transitive, databases) To optimise a database or database table by physically removing deleted tuples. (physics) A spacetime having tensors of zero magnitude. (plural only "vacuums") A vacuum cleaner.. A region of space that contains no matter.. The condition of rarefaction, or reduction of [...] |