Italian word essenza comes from Proto-Indo-European *h₁ésti (To be.), Proto-Indo-European *h₁ésmi, Ancient Greek λόγῳ, Proto-Indo-European *bʰowHéyeti, Ancient Greek ὀυτ-
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₁ésti | Proto-Indo-European (ine-pro) | To be. |
| *h₁ésmi | Proto-Indo-European (ine-pro) | |
| λόγῳ | Ancient Greek (grc) | |
| *bʰowHéyeti | Proto-Indo-European (ine-pro) | |
| ὀυτ- | Ancient Greek (grc) | |
| *som | Proto-Italic (itc-pro) | |
| *fuiō | Proto-Italic (itc-pro) | To become. |
| *ezom | Proto-Italic (itc-pro) | Be. |
| *ehmi | Proto-Hellenic (grk-pro) | To be. |
| esom | Old Latin (itc-ola) | |
| εἰμί | Ancient Greek (grc) | |
| παλαιός | Ancient Greek (grc) | |
| οὐσία | Ancient Greek (grc) | |
| sum | Latin (lat) | (copulative) I am, exist, have (with dative). |
| essentia | Latin (lat) | Essence, being. |
| essenza | Italian (ita) | Essence, gist. Essential oil. |