Where does “Passaláqua” come from?

Passaláqua (Portuguese) comes from Italian Passalacqua, from Italian acqua, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “Passaláqua”, step by step

StepLanguageWordMeaning
1ItalianPassalacqua
2Italianacquawater; lane; inflection of acquare: ##...
3Latinaquawater
4Proto-Italicakʷāwater
5Proto-Indo-Europeanh₂ekʷeh₂water, flowing water
Every word from Proto-Indo-European h₂ekʷeh₂Every word from Proto-Italic akʷāEvery word from Latin aqua