Where does “jäykkäyhteys” come from?

jäykkäyhteys (Finnish) comes from Finnish yhteys, from Finnish yksi, from Proto-Finnic ükci, from Proto-Uralic ükte — one.

jäykkäyhteys (Finnish): lockup, locking, locked position the position in which the bolt is locked to the barrel in locked-breech firearms

Definitions

  1. lockup, locking, locked position the position in which the bolt is locked to the barrel in locked-breech firearms

Ancestry of “jäykkäyhteys”, step by step

jäykkäyhteys traces back through two separate lines of ancestry.

via Finnish yhteys

StepLanguageWordMeaning
1Finnishyhteysconnection; access, connection; contact
2Finnishyksione
3Proto-Finnicükcione
4Proto-Uralicükteone

via Finnish jäykkä

StepLanguageWordMeaning
1Finnishjäykkästiff, rigid
2Finnishjääice; rock; in the expression on the rocks =...
3Proto-Finnicjääice
4Proto-Uralicjäŋeice
Every word from Proto-Uralic ükte →Every word from Proto-Finnic ükci →Every word from Finnish yksi →