Where does “costișoară” come from?

costișoară (Romanian) comes from Romanian coastă, from Latin costa, from Proto-Indo-European kost-.

Ancestry of “costișoară”, step by step

StepLanguageWordMeaning
1Romaniancoastărib; flank, side; coast, seaside
2Latincostaa rib; a side, a wall
3Proto-Indo-Europeankost-—
Every word from Proto-Indo-European kost- →Every word from Latin costa →Every word from Romanian coastă →