Where does “*aka:” come from?

*aka: (Proto-Yukaghir) comes from Chuvash ака, from Chagatai اکا, from Proto-Turkic āka, from Proto-Germanic *Ākā, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “*aka:”, step by step

StepLanguageWordMeaning
1Chuvashакаplowing; plowed arable land; April
2Chagataiاکا—
3Proto-Turkicākaelder
4Proto-Germanic*Ākā—
5Latinaquawater
6Proto-Italicakʷāwater
7Proto-Indo-Europeanh₂ekʷeh₂water, flowing water

Words derived from “*aka:”

Every word from Proto-Indo-European h₂ekʷeh₂ →Every word from Proto-Italic akʷā →Every word from Latin aqua →