Where does “śpek” come from?

śpek (Polish) comes from German speck, from Middle High German spec, from Old High German spek, from Proto-West Germanic *spik, from Proto-Germanic spiką, from Proto-Indo-European spēy- — to stretch; thrive; succeed.

Ancestry of “śpek”, step by step

StepLanguageWordMeaning
1Germanspeckbacon, fatty cellular tissue under the porkrind
2Middle High Germanspec—
3Old High Germanspekbacon
4Proto-West Germanic*spikbacon
5Proto-Germanicspikąbacon
6Proto-Indo-Europeanspēy-to stretch; thrive; succeed
Every word from Proto-Indo-European spēy- →Every word from Proto-Germanic spiką →Every word from Proto-West Germanic *spik →