Where does “Aleksis” come from?

Aleksis (Latvian) comes from Latin Alexius, from Ancient Greek Ἄλεξις, from Ancient Greek ᾰ̓λέξω, from Proto-Indo-European h₂lek-s-.

Ancestry of “Aleksis”, step by step

StepLanguageWordMeaning
1LatinAlexius—
2Ancient GreekἌλεξιςhelper, defender
3Ancient Greekᾰ̓λέξωI ward off; ward off
4Proto-Indo-Europeanh₂lek-s-—
Every word from Proto-Indo-European h₂lek-s- →Every word from Ancient Greek ᾰ̓λέξω →Every word from Ancient Greek Ἄλεξις →