Where does “Aguado” come from?

Aguado (English) comes from Spanish aguado, from Spanish aguar, from Spanish agua, from Old Spanish agua, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “Aguado”, step by step

Step	Language	Word	Meaning
1	Spanish	aguado	watery; with broth; flaccid, weak
2	Spanish	aguar	to water down, dilute
3	Spanish	agua	water; body of water; rain
4	Old Spanish	agua	water
5	Latin	aqua	water
6	Proto-Italic	akʷā	water
7	Proto-Indo-European	h₂ekʷeh₂	water, flowing water

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