Where does “akvamarinon” come from?

akvamarinon (Hungarian) comes from Hungarian akvamarin, from German Aquamarin, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “akvamarinon”, step by step

Step	Language	Word	Meaning
1	Hungarian	akvamarin	aquamarine the bluish-green colour of the sea
2	German	Aquamarin	aquamarine
3	Latin	aqua	water
4	Proto-Italic	akʷā	water
5	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 →