Where does “шампион//šampion” come from?

шампион//šampion (Serbo-Croatian) comes from French champion, from Old French champion, from Latin campionem, from Frankish kampijō, from Proto-Germanic kampijô, from Latin campus, from Proto-Indo-European kh₂emp-, from Proto-Indo-European kh₂em- — to bend, to curve.

Ancestry of “шампион//šampion”, step by step

StepLanguageWordMeaning
1Frenchchampionchampion
2Old Frenchchampion
3Latincampionemaccusative singular of campiō; champion, fighter
4Frankishkampijōfighter; combat soldier
5Proto-Germanickampijô
6LatincampusOpen flat level ground: a plain, a natural field;...
7Proto-Indo-Europeankh₂emp-to bend; crooked; to bend, curve
8Proto-Indo-Europeankh₂em-to bend, to curve
Every word from Proto-Indo-European kh₂em-Every word from Proto-Indo-European kh₂emp-Every word from Latin campus