Where does “tasoristeysopastin” come from?

tasoristeysopastin (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.

tasoristeysopastin (Finnish): level crossing signal

Definitions

  1. level crossing signal

Ancestry of “tasoristeysopastin”, step by step

tasoristeysopastin 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 tasoristeys

StepLanguageWordMeaning
1Finnishtasoristeyslevel crossing, grade crossing
2Finnishristeyscrossing, intersection, junction
3Finnishristetäto intersect, cross
4FinnishRisticross
5Finnish-iäinenFront vowel variant of -iainen
6Finnish-inen-like, -ous, -y; -en; Creates adjectives from...
7Finnish-uusForms nouns from adjectives, expressing a quality
8Proto-Finnic-uc-ness, -hood
Every word from Proto-Italic *olnos