Where does “Cociu” come from?

Cociu (Romanian) comes from Hungarian Kocs, from German kōch, from Middle High German koch, from Middle High German kochen, from Old High German kohhōn, from Proto-Germanic kukōną, from Proto-Germanic kukaz, from Latin coquus — to bend, arch.

Ancestry of “Cociu”, step by step

StepLanguageWordMeaning
1HungarianKocs
2Germankōchcook one who cooks; male or unspecified gender
3Middle High Germankoch
4Middle High Germankochento cook
5Old High Germankohhōnto cook
6Proto-Germanickukōnąto cook
7Proto-Germanickukazcook
8LatincoquusA cook; person who makes food
9Latincoquōto cook; prepare food
10EnglishCookA placename
11Middle Englishcookcook, chef, restauranteur; nourisher, nourishment
12Old Englishcōca cook
13Proto-West Germanickokkcock, rooster, chicken
14Proto-Germanickukkazcock, rooster, chicken
15Proto-Indo-Europeangēw-to bend, arch
Every word from Proto-Indo-European gēw-Every word from Proto-Germanic kukkazEvery word from Proto-West Germanic kokk