Where does “koilosternia” come from?

koilosternia (English) comes from English sternum, from New Latin sternum, from Ancient Greek στέρνον, from Proto-Indo-European stern- — forehead, chest, side.

Ancestry of “koilosternia”, step by step

koilosternia traces back through 3 separate lines of ancestry.

via English sternum

StepLanguageWordMeaning
1EnglishsternumThe breastbone; The sclerotized plate of spiders,...
2New Latinsternum
3Ancient Greekστέρνονbreast, chest; seat of the affections, heart;...
4Proto-Indo-Europeanstern-forehead, chest, side

via English ia

StepLanguageWordMeaning
1Englishia

via English koilo

StepLanguageWordMeaning
1Englishkoilo
Every word from Proto-Indo-European stern-Every word from Ancient Greek στέρνονEvery word from New Latin sternum