Where does “coissa” come from?

coissa (Old Portuguese) comes from Late Latin coxa, from Latin coxa, from Proto-Indo-European koḱs- — joint.

Ancestry of “coissa”, step by step

StepLanguageWordMeaning
1Late Latincoxathigh; hip , hipbone
2Latincoxahip (joint), hipbone
3Proto-Indo-Europeankoḱs-joint
Every word from Proto-Indo-European koḱs- →Every word from Latin coxa →Every word from Late Latin coxa →