Where does “*sorba” come from?

*sorba (Vulgar Latin) comes from Latin sorbum, from Latin sorbus, from Indo-European *ser-.

Ancestry of “*sorba”, step by step

StepLanguageWordMeaning
1Latinsorbumsorb, fruit of the service tree
2Latinsorbussorb; service tree; "Sorbus domestica"
3Indo-European*ser-—
Every word from Indo-European *ser- →Every word from Latin sorbus →Every word from Latin sorbum →