Where does “tikkulaatikko” come from?

tikkulaatikko (Finnish) comes from Finnish tikku, from Swedish sticka, from Czech -ka, from Proto-Slavic -ъka, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

Ancestry of “tikkulaatikko”, step by step

tikkulaatikko traces back through two separate lines of ancestry.

via Finnish tikku

StepLanguageWordMeaning
1Finnishtikkusplinter; sliver; chip
2Swedishstickaa splinter; a knitting needle; to knit
3Czech-kaAppended to words to create a feminine version of...
4Proto-Slavic-ъkaDenominal, forms diminutives; Deadjectival,...
5Proto-Indo-European-kosCreates deadjectival and desubstantival...

via Finnish laatikko

StepLanguageWordMeaning
1Finnishlaatikkobox; drawer; casserole
2Old Swedishladhika
3Proto-Germanichlaþōdrawer
Every word from Proto-Indo-European -kosEvery word from Czech -kaEvery word from Proto-Slavic -ъka