to influence, have an influence on, affect, have an effect on, impact, have an impact on · to have an effect on, act, work · to appear (to be), seem (to be)
çekim: geçmiş vaikuttanut · şimdiki vaikuttaisi · ulaç vaikuttava
köken: vaiku- + -ttaa, with a root of unknown origin. The root word vaikku (“power, effectiveness”) can indeed be found in dialects, but it may be a back-formation. Theories about the root include that it is a borrowing from Proto-Norse [script needed] (*kwaikwō) (compare Old Norse kveika (“fuel”)) and that it is a borrowing from Baltic (compare Lithuanian viẽkas (“power, vitality”)). It is unknown…