Where does “hylkyaukko” come from?

hylkyaukko (Finnish) comes from Finnish hylky, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

hylkyaukko (Finnish): osculum

Definitions

  1. osculum

Ancestry of “hylkyaukko”, step by step

hylkyaukko traces back through two separate lines of ancestry.

via Finnish hylky

StepLanguageWordMeaning
1Finnishhylkyderelict; shipwreck; reject
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns

via Finnish aukko

StepLanguageWordMeaning
1Finnishaukkohole; gap; opening
2Proto-Finnicaukkohole; gap, opening
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish hylky →