Where does “alio” come from?

alio (Romanian) comes from Russian алё, from French allô, from English hallo, from Middle English halou, from Old English hēla, from Proto-West Germanic *hą̄hilō — heel.

Ancestry of “alio”, step by step

StepLanguageWordMeaning
1Russianалёused to confirm that the person being addressed is paying attention
2Frenchallôhello; used to confirm that the person being...
3EnglishhalloAlternative form of hello; A cry of surprise; The...
4Middle Englishhalou—
5Old Englishhēlaheel
6Proto-West Germanic*hą̄hilōheel
Every word from Proto-West Germanic *hą̄hilō →Every word from Old English hēla →Every word from Middle English halou →