Portuguese word janela comes from Latin Ianus (The god Janus.)
| Dictionary entry | Language | Definition |
|---|---|---|
| Ianus | Latin (lat) | The god Janus. |
| ianua | Latin (lat) | Any double-doored entrance (e.g. a domestic door or a gate to a temple or city). |
| *januella | Vulgar Latin (la-vul) | |
| janella | Old Portuguese (roa-opt) | Window. |
| janela | Portuguese (pt) | Third-person singular (ele and ela, also used with você and others) present indicative of janelar Ele janela. He stands by the window. second-person singular (tu, sometimes used with você) affirmative imperative of janelar Tu aí, janela sozinho. You there, stand by the window by yourself. Window. |