Where does “suojastusopastin” come from?

suojastusopastin (Finnish) comes from Finnish opastin, from Finnish opastaa, from Finnish opas, from Finnish äs, from German ās, from French as, from Italian asso, from German ass — that.

suojastusopastin (Finnish): block signal

Definitions

  1. block signal

Ancestry of “suojastusopastin”, step by step

suojastusopastin traces back through two separate lines of ancestry.

via Finnish opastin

StepLanguageWordMeaning
1Finnishopastinsemaphore, signal, signaling device; First-person...
2Finnishopastaato guide, help; to mentor; to lead
3Finnishopasguide; guide book, guide
4Finnishäsess; argh
5Germanāsas, a unit and a Roman coin
6Frenchasace; as; second-person singular present...
7Italianassoace; A piece or side having a single dot
8GermanassSwitzerland and Liechtenstein standard spelling...
9EnglishaceA single point or spot on a playing card or die;...
10EnglishasexualNonsexual in nature, unmarked by sexual activity;...
11Englishā-
12Middle Englisha-up, out, away; of; on, in
13Middle Frencha-
14LatinAdtoward, to
15Latinilliche, she, it, yonder, that, overthere; in that...
16Latinillethat; those; "; demonstrative pronoun "; that...
17LatinolleArchaic form of ille
18Proto-Italic*olnosthat

via Finnish suojastus

StepLanguageWordMeaning
1Finnishsuojastusautomatic block signaling, automatic block system
2Finnishsuojastaato use automatic block signaling (on a track section)
3Finnishsuojashelter; protective covering; refuge
4Proto-Finnicsoojashelter; protection; warm
5Russianсо́яjay {{i|dialectal}}
6Dutchsojasoy
7Japaneseそい醤油 soy sauce
8Japanese醤油soy sauce
9Middle Chinese醬油
10Middle Chinesebean paste
Every word from Proto-Italic *olnos