Where does “dubitō” come from?

dubitō (Latin) comes from Latin dubō, from Latin *dubos, from Indo-European *bʰuH-.

Ancestry of “dubitō”, step by step

Step	Language	Word	Meaning
1	Latin	dubō	—
2	Latin	*dubos	—
3	Indo-European	*bʰuH-	—

dubitō — Etymology, Origin & Word History | Etymology Explorer