Where does “syrjäytysreaktio” come from?

syrjäytysreaktio (Finnish) comes from Finnish reaktio, from Latin reactio, from Latin reago, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro-, from Proto-Indo-European pro- — passed , crossed.

Ancestry of “syrjäytysreaktio”, step by step

syrjäytysreaktio traces back through two separate lines of ancestry.

via Finnish reaktio

StepLanguageWordMeaning
1FinnishreaktioA reaction
2Latinreactioreaction
3LatinreagoI act upon again, I do again; I react
4Latinrĕ-back, backwards
5Latinprōdūcōto lead or bring forth, forward or out
6Latinprō-forward direction, forward movement
7Proto-Italic*pro-pro- see the Latin entry for further meanings
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed

via Finnish syrjäytys

StepLanguageWordMeaning
1Finnishsyrjäytysoverriding
2Finnishsyrjäyttääto supplant, replace, displace, supersede
3Finnish-uttaaaivastaa + API → aivastuttaa; rakentaa + API →...
4Ingrian-uaUsed to form inchoative verbs
5Finnish-ttääFront vowel variant of -ttaa
6Proto-Finnic-ttadakCreates causative verbs from regular verbs,...
7Proto-Uralic-kta-
Every word from Proto-Indo-European pr̥tós