Where does “sisällyksinen” come from?

sisällyksinen (Finnish) comes from Finnish sisällys, from Finnish sisältää, from Finnish sisä-, from Proto-Finnic sicä, from Proto-Uralic śićä.

Ancestry of “sisällyksinen”, step by step

StepLanguageWordMeaning
1Finnishsisällyscontent
2FinnishsisältääTo include; to contain; To involve
3Finnishsisä-inner, internal, interior, inward; indoor; inland
4Proto-Finnicsicäinsides, inside
5Proto-Uralicśićä—
Every word from Proto-Uralic śićä →Every word from Finnish sisä- →Every word from Finnish sisältää →
sisällyksinen — Etymology, Origin & Word History | Etymology Explorer