Where does “*kalbǭ” come from?

*kalbǭ (Proto-Germanic) comes from Proto-Germanic kalbaz, from Proto-Indo-European gʷolbʰo — womb, animal young.

Ancestry of “*kalbǭ”, step by step

StepLanguageWordMeaning
1Proto-Germanickalbazcalf
2Proto-Indo-Europeangʷolbʰowomb, animal young
Every word from Proto-Indo-European gʷolbʰo →Every word from Proto-Germanic kalbaz →