Costal
/ˈkɒs.təl/noun
Relating to the ribs or to the coast.
Did you know?The medical sense comes from Latin costa, “rib,” while the coastal sense comes from a different Latin source, costa, “shore,” so the same-looking word masks two separate histories.
Etymological Timeline
Latin
Latin
costa
“rib”
Old French
Old French
coste
“rib; side; shore”
Middle English
English
costal
“of the ribs or the side”
Modern English
English
costal
“relating to the ribs or to the coast”