Where does “bostela” come from?

bostela (Portuguese) comes from Vulgar Latin pustella, from Latin pustula, from Finnish pus-, from Proto-Indo-European bew- — "low-pitch humming noise".

bostela (Portuguese): scab

Definitions

  1. scab

Ancestry of “bostela”, step by step

StepLanguageWordMeaning
1Vulgar Latinpustella—
2Latinpustulainflamed sore, blister, pustule
3Finnishpus-—
4Proto-Indo-Europeanbew-"low-pitch humming noise"
Every word from Proto-Indo-European bew- →Every word from Finnish pus- →Every word from Latin pustula →