Where does “aquanauta” come from?

aquanauta (Portuguese) comes from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

aquanauta (Portuguese): aquanaut underwater explorer

Definitions

  1. aquanaut underwater explorer

Ancestry of “aquanauta”, step by step

StepLanguageWordMeaning
1Latinaquawater
2Proto-Italicakʷāwater
3Proto-Indo-Europeanh₂ekʷeh₂water, flowing water
Every word from Proto-Indo-European h₂ekʷeh₂ →Every word from Proto-Italic akʷā →Every word from Latin aqua →