Where does “evankelioimiskokous” come from?

evankelioimiskokous (Finnish) comes from Finnish evankelioiminen, from Finnish evankelioida, from Late Latin evangelizo, from Ancient Greek εὐαγγελίζω, from Ancient Greek εὐαγγέλιον, from Ancient Greek εὐάγγελος, from Ancient Greek ἀγγέλλω, from Ancient Greek ἄγγελος — angel; messenger.

evankelioimiskokous (Finnish): evangelization meeting