Where does “*Ākā” come from?

*Ākā (Proto-Germanic) comes from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “*Ākā”, step by step

StepLanguageWordMeaning
1Latinaquawater
2Proto-Italicakʷāwater
3Proto-Indo-Europeanh₂ekʷeh₂water, flowing water

Words derived from “*Ākā

Every word from Proto-Indo-European h₂ekʷeh₂Every word from Proto-Italic akʷāEvery word from Latin aqua