Where does “sunnuntailisä” come from?
sunnuntailisä (Finnish) comes from Finnish sunnuntai, from Old Saxon sunnundag, from Proto-Germanic *Sunnōn dag, from Latin dies Solis, from Latin sōl, from Proto-Indo-European sóh₂wl̥ — sun.
sunnuntailisä (Finnish): Sunday allowance
Ancestry of “sunnuntailisä”, step by step