Where does “дека” come from?

дека (Serbo-Croatian) comes from German decke, from Middle High German decke, from Old High German theckī, from Old High German thecken, from Proto-West Germanic þakkjan, from Proto-Germanic þakjaną, from Proto-Germanic þaką, from Proto-Indo-European (s)teg- — to cover; pole, stick, beam.

дека (Serbo-Croatian): grandfather, grandpa; blanket

Definitions

  1. grandfather, grandpa; blanket

Ancestry of “дека”, step by step

дека traces back through two separate lines of ancestry.

via German decke

StepLanguageWordMeaning
1Germandeckepresent first-person singular of decken "I cover"
2Middle High Germandecke
3Old High Germantheckī
4Old High Germanthecken
5Proto-West Germanicþakkjanto cover; to burn
6Proto-Germanicþakjanąto cover; to burn
7Proto-Germanicþakąroof, cover
8Proto-Indo-European(s)teg-to cover; pole, stick, beam

via Serbo-Croatian дедка

StepLanguageWordMeaning
1Serbo-Croatianдедка
2Serbo-Croatianдедаgrandfather
3Proto-Slavicdědъgrandfather
4Proto-Balto-Slavicdēˀd-
5Proto-Indo-Europeandʰeh₁dʰ-
6Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse
Every word from Proto-Indo-European (s)teg-Every word from Proto-Germanic þakąEvery word from Proto-Germanic þakjaną
дека — Etymology, Origin & Word History | Etymology Explorer