kehitysvaihe (Finnish) comes from Finnish kehitys, from Finnish kehittää, from Finnish kehitä, from Finnish -itä, from Proto-Finnic -it'ak — Forms verbs.
kehitysvaihe (Finnish): developmental phase, stage in development
Definitions
developmental phase, stage in development
Ancestry of “kehitysvaihe”, step by step
kehitysvaihe traces back through two separate lines of ancestry.