Where does “sähkötysavain” come from?

sähkötysavain (Finnish) comes from Finnish sähkötys, from Finnish sähköttää, from Finnish sähkö, from Finnish sähähtää, from Finnish ahtaa, from Proto-Finnic aktadak, from Proto-Uralic ëkta- — to hang up.

sähkötysavain (Finnish): Morse key, telegraph key device for transmitting Morse code by hand

Definitions

  1. Morse key, telegraph key device for transmitting Morse code by hand

Ancestry of “sähkötysavain”, step by step

sähkötysavain traces back through two separate lines of ancestry.

via Finnish sähkötys

StepLanguageWordMeaning
1Finnishsähkötystelegraphing
2Finnishsähköttääto wire, telegraph
3Finnishsähköelectricity
4Finnishsähähtääto sizzle
5Finnishahtaato cram, stuff, fill, pack full; to supercharge;...
6Proto-Finnicaktadakto hang up, especially traps; grain to dry in a...
7Proto-Uralicëkta-to hang up

via Finnish avain

StepLanguageWordMeaning
1Finnishavainkey; code; clef, used especially in compound...
2Finnishavatato open; to unwrap; to turn on
3Proto-Finnicavait'akto open
4Proto-Finno-Ugricaŋa-
Every word from Proto-Uralic ëkta-Every word from Proto-Finnic aktadakEvery word from Finnish ahtaa