Where does “vastakkaisesti” come from?

vastakkaisesti (Finnish) comes from Finnish vastakkainen, from Finnish vastakkain, from Finnish vasta-, from Finnish vasta, from Swedish kvast, from Old Swedish quaster, from Old Norse kvǫstr, from Proto-Germanic kwastuz — twig; leafwork.

Ancestry of “vastakkaisesti”, step by step

StepLanguageWordMeaning
1Finnishvastakkainenopposite, contrary; inverse
2Finnishvastakkainagainst; face to face, vis-à-vis
3Finnishvasta-Expressing opposition or contrast: counter-,...
4FinnishvastaExpressing delay or that something takes place...
5Swedishkvastbroom; tassel; cyme
6Old Swedishquaster
7Old Norsekvǫstr
8Proto-Germanickwastuztuft; tassel
9Proto-Indo-Europeangʷes-twig; leafwork
Every word from Proto-Indo-European gʷes-Every word from Finnish vasta-Every word from Proto-Germanic kwastuz
vastakkaisesti — Etymology, Origin & Word History | Etymology Explorer