Where does “Κελταί” come from?

Κελταί (Ancient Greek) comes from Proto-Celtic kel-to, from Proto-Indo-European ḱelh₂- — to pierce, strike; to stick; prick; stab.

Ancestry of “Κελταί”, step by step

StepLanguageWordMeaning
1Proto-Celtickel-to—
2Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab
Every word from Proto-Indo-European ḱelh₂- →Every word from Proto-Celtic kel-to →