Where does “chondrocostal” come from?

chondrocostal (English) comes from English costal, from French costal, from Latin costalis, from Latin costa, from Proto-Indo-European kost-.

Ancestry of “chondrocostal”, step by step

StepLanguageWordMeaning
1EnglishcostalPertaining to a rib; Pertaining to a costa
2Frenchcostalcostal
3LatincostalisOf, pertaining to or resembling ribs
4Latincostaa rib; a side, a wall
5Proto-Indo-Europeankost-—
Every word from Proto-Indo-European kost- →Every word from Latin costa →Every word from Latin costalis →