Where does “Sorbus” come from?

Sorbus (Translingual) comes from Latin sorbus, from Indo-European *ser-.

Ancestry of “Sorbus”, step by step

Step	Language	Word	Meaning
1	Latin	sorbus	sorb; service tree; "Sorbus domestica"
2	Indo-European	*ser-	—

Sorbus — Etymology, Origin & Word History | Etymology Explorer