kumikorkki (Finnish) comes from Finnish korkki, from Swedish kork, from German Kork, from Dutch kurk, from Middle Dutch curc, from Spanish corcho, from Latin cortex, from Proto-Indo-European *(s)kort-ek-s.
kumikorkki (Finnish): rubber cap, rubber stopper
Definitions
rubber cap, rubber stopper
Ancestry of “kumikorkki”, step by step
kumikorkki traces back through two separate lines of ancestry.